How about advertising on CL and local websites/newspapers for a lathe? I've done it on my local CL and have had a couple of good results.
I may have missed this but ARE the ways hardened and straight? The first indication would be wear lines on the angled way which would result in a square being worn at the top of the way.
I have to hand it to you, I'd be dropping it off at the dealer and demanding my money back, I would be very worried about the quality of the other components, if gears are hardened properly, lead and feed screws, BEARINGS, things that would be giving the grunt to the spindle and carriage.