Used KWA-100 (with upgrades) value

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I am looking for a second amp for a secondary system. I have Bryston 7BSST2 in my main system.

My local dealer has a trade-in KWA100 that has some upgraded capacitors (8) and few other mods. It is not quite an SE model. My thinking is it probably sounds very good, but if I ever wanted to sell, it would not keep the value of the upgrades ($550 Canadian). I don’t mind paying a little extra to buy local.

Is it still a current model? What do used stock models normally go for?