^^^From what I've heard around the water cooler there are a few shops in the Toronto area that sell Japanese engines and do swaps. Do a search in the Corolla forum for "engine swaps" or something along those lines.
Also just to give you a rough idea, this place in the US has engines and trannys and ECUs and the like:
http://www.toysport.com/
They have this listed:
4AGZE LATE FORGED TURBO PISTON 8.3:1 $ 2,500.00
Under "catalogs" you can browse their stuff.
Here's some from the "JDM Conversions" section:
4AGZE AE92 SUPERCHARGED w/ INTERCOOLER, Full Harness ECU $ 2,250.00
4AGZE AW11 SUPERCHARGED w/ INTERCOOLER, Full Harness ECU, AUTOMATIC $ 2,250.00