Takedowns are gorgeous, especially the one in the post above, I say God damn! I will admit that I just recently fell in love with them, self bows have that gorgeous ancient history and oneness with nature aspect.
A bow held together by nuts and bolts is, already by definition, not a self bow, nor a primitive bow. But what the heck. To each his own. I think bolts and nuts on a bow are about as attractive as Beyoncé in a pile of dung.
As far as the technical questions are concerned: you don't need power tools to make good and beautiful bows. Going slowly has its merits, and a hand-crafted bow will give you more satisfaction.
If your goal is to have a well-shooting bow as soon as possible, you might as well make a PVC bow and give it a faux-wood paint job. Will be -IMHO- as close to a self bow as what you're making now. And they also come in three-piece takedowns with riser if that ticks your boxes. Or five-piece takedowns, and in any possible design.
https://plus.google.com/u/0/communities/115443350092709812365Not that I want to convince you that way. Coming from FG and experimenting with wood indicates you're tempted by the light side of the force. Continue that way ;-)