I just went thur the motor thing;
SVO 302 crate motor, alum.heads, 345HP $3100
Alum Edelbrock waterpump $150
RPM Performer intake man $180
750 holly double pumper $370
MSA 6Al $200
MSD Blaster SS coil $40
MSD Billet Distributor $200
7 quart canon Road race oil pan $225
oil pump pickup $40
alum valve covers, make your own vent holes, oil fill holes etc. $90
other stuff, fuel lines likage etc. $100
Total $4695
audi gearbox %500
Renaut R21T $3000
Upgrades for r21, LDS Mainshaft, gears $3000
ZF $7000
other >$10000
You still need more stuff, Air con system, alternator, belts, crank dampner, front cover, hoses, airfilter, oilcooler?, remote filter? AN lines? headers( did they come with kit)
I spent $300 changeing mufflers and getting jet hot coated.
prices for motor from JEGS 1`800 345 4545
This will build you a very nice but streetable motor @ about 350-370 HP that you never will spend any more money on. At this power output the powertrain will be reliable.
forgot clutch upgrade from centerforce $250, I sent them the new stock GTD renuaut clutch and they just about doubled its clamping force.
Whoever said 10000 for powertrain allin is just about right. but you can do it for a lot less it depends on what level of build you want.
Remember this project will take years so you will not have to spend all this money at once.
My advice is only buy things once and get it right the first time. This will save you money overall.
Just do it!