The Tycoon does come in a platinum with black trim, as does the jr Retro from CSUSA (if somebody has one to spare) The jr Gent does not come in platinum with black. Another option is the vail kit from Ernie at beartoothwoods which comes in a true chrome finish with black trim for about 2/3 the price of the platinum kits. All 3 kits use the same chinese section/feed/nib assy. The nibs are ok, most of them write fair to quite well out of the box. The primary problem with them is that they are immediately identifiable to a knowledgeable customer as chinese, and that's not a good thing. There are several upgrade paths, depending on what the customer wants, and is willing to spend. The converters that are supplied with the kits are quite reliable, but the ink cartridge included with it is junk, and should immediately be discarded.
My personal suggestion would be to turn a chrome vail fp, and use the money saved to upgrade to a SF nib and include a couple of premium quality ink cartridges, or if the customer is going to pick it up directly, demonstrate how to use the converter to fill the pen with a good quality bottle ink.
I would definitely preassemble the upgraded nib into the section, fill with ink, and do some writing on the inside of a brown paper bag to put a little polish on the nib, and then write your pen description, sales pitch, ect. on the back of a business card to include with the finished item. Then disassemble, flush, dry thoroughly, and reassemble everything.
Good luck, if you can get a customer hooked on FP's, you usually have repeat sales from now on.