RVSM - Europe
You can fly to Europe without being RVSM certified. We did it about a year ago with our Citation X. We were in the same situation as yourself, getting our plane qualified.
We had to have a letter of authorization from our GADO rep to authourize us to fly into MNPS airspace, and you will still need certain equipment on your aircraft like the vhf radio 8.33 spacing requirments.
You will need to fly above or below RVSM airspace in the Atlantic, which is below FL280 or above FL420. You must indicate on your flight plan non- RVSM compliant. When you reach the coast in point in Europe, you may be sent below FL280 and fly to your destination below European RVSM airspace. When we did our first trip, they kept us at FL430 well into European airspace. When we told the European controllers that we were non-RVSM compliant, they really didnt care and kept us up high until our normal descent into London. When we returned to the states, the Euro controllers brought us up to FL430 well before the coast out point. (go figure-but dont count on it every time)
If you can't plan a flight above RVSM airspace, and plan to fly below FL280, with the extra fuel burn, ETP's, you may have to file via the northern routes.
I hope this helps, its more work, but it can be done.
Good Luck!