Sounds like a plan. I have the 40mm pancake lens that I use on the EOS 30 and it makes for such a nice light and compact set-up, so the 50 with a 50 (!) shouldn't be much different... plus you'll have the silver and black retro look too!
Best of luck and I'll look forward to seeing some photos from it, all the very best with your wedding too.
Oh, and if you decide to try the eye controlled focus (ECF) then make sure you read a copy of the instruction manual first, clear the previous settings and take your time setting it up. When calibrating it try to relax but not take your eye of the subject you've chosen to focus on even for a split second. When using it there's no need to stare and strain your eye, but keep looking at the focus point until you've pressed the shutter button half way and it locks on to that point. If calibrated right, fully working and it suits you, I think ECF is one of the best camera inventions ever. If ECF doesn't work for you then you can always turn it off and use the camera 'normally'; after all, what do you want for £20! Hope this is useful.