Surely the changes in levels to odds/evens between 290 and 390 applies to everybody, RVSM compliant or not. You can't have NONRVSM going west at 350 and RVSM coming the other way at the same level. So you will be at 320 going west whether you're compliant or not.
The point is that if both aircraft are RVSM compliant they can be 1000 ft apart. If either or both are non-compliant/exempt/unknown then they must be kept 2000 ft apart.
RVSM status must be included in the flt plan.
You're fortunate if you fly an aircraft which can cruise above RVSM at max weight.
There's good info at:
www.eur-rvsm.com and
www.nats.co.uk/operational/rvsm.html