Mark, welcome to your initiation on Synthzone! ::
Good luck with selling the T5. Should be no problem. Trust me, nobody here means any ill will against anyone else (most of the time)!
Regarding the returning of items, if the dealer doesn't want to accept returns, either with or without restocking charges, they should simply not offer it.
I have used Sweetwater Music a few times on items that I wasn't sure would work for my needs, most notably a Behringer midi foot controller. As far as I recall, it's the only thing I ever returned, but they were quite gracious and honored their policy with a smile.
Smaller independent dealers such as Frank or George probably can't afford to offer money back, no questions asked, but I know personally either of them would go out of his way to make us happy, probably to the point of exchanging it for something else.
There is no longer an arranger dealer within 200 miles from me, at least that stocks anything close to MOTL models. Not sure if anyone this side of the nation stocks TOTL stuff any more.
The choices are make a long trip and spend a lot of time at the store, or buy one on line or on the phone hoping you like it.
Mark never hinted at wanting to return his, he just wants to sell the dang thing!
Happy New Year all!