(1) Welcome aboard! (2) that ain't a long read (you'll see!) (3) I would suggest some EQ mag heads with the LA intake manifold pattern. I'd stroke it as 4" cranks are cheap now & the pistons ain't too bad (KB 356's) & get .035" quench. #1 decide street or strip (or a combo) then what octane are you willing to run & what cam characteristics are you comfortable with then and what rear gear ratio as that will be a healthy start to set some parameters for a build. As you noted this ain't a cheap hobby.