should be a sick ride when done. your doing a top sway technically, not a L67.

you should just find a used blower, they cost about a 100 used for a gen 3 less at at a junk yard.

and you need to fab up a TB intake tube to the blower inlet because the TB wont fit due to the firewall being to close. its been done before, not sure if the tb tube is being made and sold or not, every one ive seen looks different and home made.