*update*
well, i have thrown the budget out the window.
priced a few things, looks like a silly fast M10 isnt that expensive.
$1400 for pistons, $1400 for rods and $5K for a sweet builder to put it all together.
the $5K gets me balance, bore, rings and all that crap.
so all i have to do is bring him the bits (head, pistons, rods and block) and he gives me back a nice built balanced motor
should be good for 400 - 500 hp at the crank