Hello,
Well, one word of warning....you'll lose more money that the stock market shooting benchrest but it is a H*ll of a lot more fun...
Normally, I would say buy new if your very interested but with the used market in BR guns being what it is.....you can basically buy a very good shooting gun for the price of action and stock.
I live in southern indiana, (47581 zip), if you can make it down some weekend, I have a personal range and a variety of guns and rests you can shoot and decide what you like the feel of , ie: ejector or no ejector, RBLP, no grip stock, grip stocks, different scopes, different rests and rear bags. Even different flags. I can also get some friends rifles and you can try drop ports and other setups. Just need to plan ahead so I can get everything together. If you want, we can prep and form cases, etc...
If you don't want to come this far, get a hold of Joe Krupa, NBRSA regional director, and I'm sure either he or he can hook you up with someone that can do the same. You have a ton of very good shooters up there.
Hovis
P.S. don't worry about turners and other things like that yet. You need to establish a foundation and keep it simple...JMHO.