I have an option to buy a used 2003 Washburn XB-102Q 4 string. I just started playing bass about 3 months ago with a silvertone revolver bass and package amp. I bought a nice hartke am because the one included in the package sucked. Would this be a nice addition and something else to play on/play with as far as string changes, set up, etc without messing on my main one. I basically wnat a second one to practice setting up and changing tunings on, etc. I can get it for $100 with a hardshell case...good deal or should I make a different offer?