As far as music stores in Oregon, Kanstul Music has a store up there. The online retailers are fine, but if you can find a music store, spend your money there, they could probably use it.
What's great about TrumpetMaster is that we have many great full-time and part-time pros to answer our questions (just look at the artists in residence).
Do plenty of research before you buy a horn. As a very GENERAL rule, dont spend less than 1K for a NEW picc. The Getzen Eterna 940 is the classic picc to start out on and for good reason. Lots of pros still play on these without ever "upgrading". It's a fine horn for the money. As with all horns, it's what works for YOU. If you're not prepared to spend the $$ for a decent horn, honestly, dont bother.
Jim Donaldson has a great website with info on Schilke trumpets and a FAQ's page:
Guide to Piccolo trumpets
Check out the other forums and see what others have to say. There is a wealth of info on this site.
Good Luck