I had two RD 350 YPVS as well, and I think they were one of the best all round bikes I've ever had.
Which sounds stupid but I thought they were fantastic, you really could do anything with them and they were extremely reliable .
its just the sound and smell and the pure fun of riding a 2 stroke lol
ive never ridden on a 250 race replica but my old man says they are extremely fun to ride, he says they are fine then the powerband just hits you when you dont expect it.
yeh im also looking at keeping the bike as a collectible when im finished with it