I agree with Frederick ... turning between centers (TBC) without any bushings is the recommended way to go.
But maybe you are not quite ready for that.
Seems that you want more variety of kits using the bushings you already have.
1. Your Woodcraft Slimline bushings will work with any manufacturer's slimline pen kits (not the Slimline Pro from PSI)
2. Your Woodcraft Cigar bushings will PROBABLY work with other manufacturer's Cigar pen kits, but not any non-cigar kits
The Cigar bushings are a set of 4 and they are all of different size ... that's the way a Cigar pen characteristic shape is achieved.
3. Your Woodcraft Wallstreet bushings will work with the Sierra pen kit, the Gatsby pen kit, and MAYBE the Manhattan pen kit.
(There are two or three so-called Manhattan pen kits and you have to be sure to buy the right one styled same as the Wallstreet.)
They should also work with the Virage pen kit.
That's it !! . You don't have a lot of choice with the particular bushing sets that you already have.
For any other pen kits, you will have to buy the the appropriate bushings for those kits as specified by the manufacturer.
Using the IAP app data that has been referred to above is not as easy as it should be. . There are omissions in the data and there are even a few mistakes in the data. . Also, you need quite a bit of pen-making experience under your belt in order to use the data competently. . You will also need a GOOD set of metal calipers in order to measure the parts in your pen kits yourself in order to get correct matching between various kits and their appropriate bushings. . This is partly because of various quirks in the normal pen-maker's language when referring to sizes of various parts.
For example, the slimline pens make use of a so-called 7 mm brass tube, and you are advised to drill your holes with a 7 mm drill bit.
In actual fact, the brass tube has a size which is 6.something millimeters. . Increasing the drill size to 7 mm allows for ensuring a fit after you have added glue to the brass tube (and for other reasons). . In the case of your Woodcraft Wallstreet, the recommended drill size is 27/64" diameter and this is also over-sized for the same reason. The 27/64" drill is actually 0.422" diameter, but the brass tube for the Wallstreet is only 0.411".
So you have to have a bit of experience and know what you are doing when you try to cross-match bushing sets to pen kits which they are formally not initially intended to match up with.
On top of that, most of the pen kit manufacturers don't even tell you the exact sizes of the pen parts in their kits or the exact sizes of the bushings that they sell. . This situation is extremely frustrating for a newbie. . The IAP app for Bushing and Tube sizes has been a years-long effort to rectify this situation and it has come a long way towards doing this but it still is not a "completed work" and there are gaps in the data as I have already mentioned.
You can see that learning to make your pens with the TBC method is advisable. . You should search the "Resources" section of this website and read the articles about TBC in order to learn about that method. . You should also continue to ask questions in this forum until you build up your own knowledge base to the point where you have confidence in what you are doing.
One last comment. . There is a company called Penn State, with website ...
www.PennStateInd.com ... This company does a superior job, compared to most other companies, in providing instruction sets with every single pen kit that they sell. . They also provide measurements for the lengths of the brass tubes, a central part in all pen kits, and they provide measurements for MOST of their bushing sets. . In some cases these measurements are only close approximations but at least they are "close" whereas other manufacturers don't even give any numbers.
However, it must be said that many PSI pen kits are quite different in styling and size from other manufacturers and so the PSI bushings do not transfer to pen kits from other manufacturers. . So although they do a good job of providing instructions with sizing information, that information can be relied on for only the PSI family of pen kits .... in most cases. . Having said that, their slimline pen kits (but not the Slimline Pro) do use bushings of a common size with other manufacturers of slimlines, and their Gatsby pen kits do have bushing sizes the same as the Berea Sierra pen kits, and the Woodcraft Wallstreet pen kits, and some kits named Manhattan, plus some other kits that use the 27/64" drill size.
