I have bought many pieces on Ebay and I had to fix all but one of the HI-FI pieces that I bought. My Dynaco Pat-4 had a broken wire to the output but was touching the contact so it would be intermittant. The Dynaco FM-5 had three wires that were never soldered, it would sometimes just go to sleep. All 3 Aoustic Research turntables needed new motors, new belts and two needed total rebuilds. All were claimed to work "flawlessly". My Dynaco Stereo 120 blew a channel out shortly thereafter (I had Audio by Van Alstine make it into a 170ex), and my Harmon Kardon T25 turntable came poorly boxed and the platter came loose, bending the spindle plate and breaking off the finger lift on the headshell. My 2 pairs of Dynaco A25XL's needed work with one blown tweeter in one (hard to find) and both blown on the other. Of course the sellers in all instances said they were "mint" and work perfectly. My VPI that I bought from Kevin was perfect and has been really the only thing I haven't had to fix. Yea, I could have sent them back, but what a waste of money that is too. I know how to fix things so I fix them. Obviously, Dyanco stuff is always a gamble because most were kits and they are old. I'm glad I have them as I'm listening to the Dynaco FM-5 tuner right now and it is a great tuner.
Not saying your experiences are going to be like mine but be prepared and if you sell stuff, there are a lot of freaky people out there. Most are nice, a few not so nice.
Good luck!
W aa