The 2020 Kenworth T680 sleeper cab you mentioned sounds like a fantastic option for owner/operators. It features a PACCAR 12-speed transmission, PACCAR MX-13 455-HP engine, and a PACCAR Air-Ride AG400L suspension system. With aluminum rims and only 534,465 # miles on it, this truck appears to be in excellent condition. Additionally, it comes with a 7-year/700k miles warranty from the manufacturer, which adds value and peace of mind. If you're interested, I recommend giving them a call or visitin