ah well as people are guessing

Head including cams, lifters, and portwork : 2000 exchange
Block preperation and machning including studs: 1000
Crank polish : 30
Pistons : 500
Bearings, seals, gaskets : 500
Swedish inlet : 300
GT30 + gate + manifold mods = 1400
Mapping of L8 : 400
Loom + injectors : 600

Thats only the main components though not all of it as couldnt be arsed to really sit down and think it all through, so I reckon 10K ish all in, possibly a little more if its going to include air injectors etc as well

Probably more though as Ive spent far more than that on my nova engien and thats with NO labour charges.