I bought my JDM B18C from Hmotorsonline.com. I am extremely pleased... yeah i would run down the cost, but it says right on the site... it cost 200 to ship to my house.
I used to have the G2 GSR engine... and I deffinately recommend going with the JDM B18C. I am much much much happier with it. The plan was to swap the DB2 motor back in once i had rebuilt it.... but i doubt i will be doing that!... I am that pleased with this new motor.