I don't buy/sell WoW stuff but here is my opinion.
The 65 Warrior is about all you got going for you and that is nothing. The only benefit to him is he's 65 and someone would not have to play him long until 70. (Although, their tanking skills would be horrible.) Typically the accounts that sell for good money have 70s that are geared out pretty well.
Eh, maybe that 19 twink will help a bit, but I would not get your hopes up.
Again, just my opinion.
My '03 Sold.