Rufus - The only difference for RHD to LHD front cross member would be the holes (nuts) and mounting points for the steering (pivot thing) and the steering stabilizer mount would be on the opposite side. I'm going to be away for about two weeks and my frame I was going to use is outside under a tarp and snow. It is not restoration quality, there may be some pitting, however it was good enough for me to consider it for a frame swap. Unfortunatly after having a closer look at the rear half of the frame, it wasn't worth reparing. I am waiting to ship a frame in from Colorado. I'll see if I can find a picture on my computer. You could probably have the steel part of the motor mount fabbed up.
eleblanc - do you have a dealer part number? I used to have a great parts guy in Newfoundland, I haven't had an opportunity to visit a dealership in Nova Scotia yet. Would like to avoid blank stares.
As for getting blank stares from the dealership you won't....you will only be asked for a blank cheque LOL. GOOD LUCK if you can find one of the dealerships to give you a discount ! I have been trying for several years but have given up, here in the HRM anyways. But the Dartmouth dealership parts dept is pretty good, they have gotten me everything I have requested and will go out of there way to find it.