I picked this up couple months ago
Runs like new and looks like new
Mostly lived in the south with a short stint in the north, didn’t see any rust. A couple brown spots at the weld spots on the frame but that’s about it
Just up the way from you in Niwot, CO. I have a 2017 lx570 and the maintenance manual shows 60k ach flush. Just had my 60k done at Stevinson of Lexus in Fredrick. After seeing some of the pricing for service, pleasantly surprised on the cost.