Project 302 - Some Misc Stuff

Hey I just picked up a carbed 302 and a C4 yesterday and I have a couple questions. I've been trying to order the kit from ultimatecustoms.ca but I can't get a hold of anyone there. I've phoned, emailed, left messages etc etc. Where can I get in touch with someone who can hook me up?
One other thing, is it possible to drive with the stock suspension and rear end, and least for a little while? Ride quality is not that important to me, I just want a 5L mazda Thanks in advance!