I do not know your car but based on the information provided you have a car that if purchased correctly should offer long term rewards.

The miles are right, the top goes down, the colors are perfect for a European performance vehicle (objectively nothing is more elegant than black on black on black) and the SRT6 is a quality built, dependable, thing of beauty. Fun folks in this group will welcome you and strangers will often want to comment on your uncommon car.

The price range offered seems about realistic. Comps of actual sales, as opposed to asking prices that rightly or wrongly did not result in a sale, may be hard to find. They are not making any more and seller of a low priced well cared for example can pretty much ask whatever they want and enjoy it if does not sell.

Good luck