Crate engine or 415k mile truck purchase?

So i was scrolling thru Truckpaper for a 389 or T660 since i live in CA i have to buy an emissions truck so i came across a 2012 389 with 415k miles on a Cummins 485hp 18spd 3.36 rears on 24.5lp tires and an APU for $85k.



The other truck is a 2012 Kenworth T660 (ex swift truck) with 411k miles on chassis and 57k miles on a crate engine 450hp Cummins 13spd 3.42 rears on 22.5lp tires NO APU for $81k. I like both trucks especially the 389 but what had me leaning more towards the KW is the Crate engine so i want to get your guy's opinion on which truck would you buy?

 

Those are the same questions i had, but then again I've seen other trucks with these same engines overhauled at 250-400k miles so i figured maybe the engine that was originally on this truck was un repairable

 

The dealer is Paccar Financial Used Trucks

 

74434[/attach]

 

Here's another pic

 

That would work the problem is that i go into the ports so i have to have a compliant truck