Ahhh, building the motor is a beautiful thing. I plan on doing a B18 sometime in the next couple of years. I've found a company that gives some prices to think about
:
http://www.performance-lab.com/engine_program.html
Not sure if their pricing is reasonable, but I've got a local shop that can probably do all of this for me. The normally deal with drag cars, so I'm sure they're more than capable.