Here's some info to get started.
Tribute-to-BD-Ehler.pdf
Also look into crosswrappattern on facebook.
There are several brands of wrapping thread out there.Fishhawk,fuji,prowrap,etc.Some of them require the use of colorpreserver some dont.If you dont use color preserver on threads that need it your gonna be pissed.
As far as casting goes you'll have to reasearch which kits will work.The gatsby grande and Mogul from woodturningz have alot of meat on them for casting.If using kits like the PSI executive I just build it up with CA.
Another tip is Buy 10" tubes and make your wraps 5-6" long because until you get good at it it wont be perfect and you'll have to pick the best section to cut the blank out of.
If you don't want to cast the whole extra long tube to save resin remember to set the threads before you cut it to length or you're gonna be pissed.