At the $2200-2400 price point for USED speakers, you may be able to find a pair of Vandersteen 3A Signatures, which is a terrific speaker at its retail cost, and almost unbeatable at the used price. I am using a Bryston 4B-ST amp to drive my 3A Sig's (and a Bryston 5B-ST for the center channel and surrounds), and am very pleased with the combination.
Your room width is a bit narrow, but the length is more than sufficient for you to place the 3A Sig's at least 2.5 feet away from the rear wall.
Your room width is a bit narrow, but the length is more than sufficient for you to place the 3A Sig's at least 2.5 feet away from the rear wall.