if your going to go through all that, and spend all that money, might as well start with a b18b ls motor... then do all that... 3grand for a turbo, 300$ for a cam, headwork 1grand (valves, retainers, springs, port&polish, labor) sleeved block??? turbo pistons 500, rods 500, crank??? trtanny to hold all that power, priceless.... lol... TOTAL guesses, i didnt look EVERY item up, but im close on most of them..
d15-100hp/98tq stock(if ur lucky)
b18b- 142hp/127tq stock<--- way better base motor, and better for holding boost on stock internals
just my thoughts...