limb profile- you got one you like , great start.
pad angle- need the tips at least 1.5" ahead of back of handle imo.
wedge length- I went with the standard 8"
Keeping wedges in place- easy with the form with pin to butt against. The wedge tries to squeeze out the end, so the lams will be what moves! LOL
pad angle figuring- see pad angle comment above , draw bow out on butcher paper and make sure tips are ahead of back of handle(to give her some preload) , Let me warn ya, if you go more than 2" be careful, I built one at 4" and it was kind of unruly to shoot. If you wanna change it, I would change the riser....