What Dean said, pretty much. Ask for the pics. My main basses are SX, but long scale. You get more than your money's worth IMO. The new ones are here http://www.rondomusic.com/bassguitars4.html
( for the short scale indeed look for JR or LT). The main reason for buying used is if you don't like the new headstock, IMO.
SX: Ursa2 6, 3 SJB75C 4+1, 3 SJB62, 2 SJB57, SPJ62, 2 SB301, Douglas:WVEB, WOB826, WPB955(fretless), 2 WPB980 (4 & 5),Yamaha BB404, Fullerton Ventura NT, Brice Z6, Squire Deluxe Jazz V