LOL There's a lot of guys who have started the same or similar projects and pretty much every time the costs have gone so high that it would've been cheaper to buy a turbo model... it'll be a damn sight cheaper on the old insurance too!
You'll also need to sort your suspension, brakes, driveshafts, diff etc to cope with the extra power.
Saying that, if it's a project you're after... make sure you enjoy it!
Keep us all posted yeah?