There's actually been an RR going through auction in Kobe for the last three weeks - I'll be there looking at it next week, I'll be curious to see what it's making.
I'd choose an Evo wagon if it was me, but then again, the Evo wagon may eventually make it's way on to the SEVS list by the time you're ready to bring it back...
If you're buying it for your own enjoyment, get the RR, but don't buy it with the aim of making a profit.