2005 Chevrolet Trailblazer LT EXT Grey Third Row Seating 4WD Loaded Hitch 125k

I have available for sale a 2005 Chevrolet Trailblazer LT Extended Truck with third row seating. Just clicked over 125k miles. Great looking vehicle, ust a few minor cosmetic blemishes and quirks. I had recently been looking to trade or sell it, ut at the end of May it had an engine problem develop suddenly and there is a clanging noise coming from engine, et the truck still drives. I am not sure what it is...maybe pistons, alves, don't know. I already had a second vehicle I recently bought that was going to be my car when I eventually sold the Trailblazer, ut it became necessary with this recent problem. I don't think I even want to get into taking the Trailblazer to get fixed. I had a family of 8, ut no longer needed the bigger truck as I rarely ever have more than 3 people in truck at a time. It was a daily driver and I used for personal as well as a business truck moving merchandise to shows.
Kelly Blue Book value is approximately $6500-$7000 with the options available...obviously with the problem that I don't know what it is, will sacrifice for much less. Somebody that can do repairs cheaper than a service dealer may get a steal out of this one.
V6 4200 Vortec engine...a/c dual climate control, ower windows/locks/seats, -CD/radio, eated leather seats, ruise, itch assembly (no hitch available) and more! Estimated fuel economy is 10 MPG city and around 17 MPG highway recently...probably could be improved with new sparks, etter tire pressure management (I tend to forget to check) and other things mechanics suggest to optimize fuel economy.