New to all of this

Is it pretty difficult to get the two trans into one, or should i not even attempt it. Ive never taken apart a tranny before but it could be fun to learn how. i also would not like to ruin 2 trannys

as far as the engine goes i know demon seed recomends doing a stroker and that sounds good and all but maybe a little pricey and that would have to come further down the line could i just put some good top end products in there and still be able to make good power or should i just do the stroker the first time and get it over with