Egr cooler question

[Paracefan]

I'm in PA, these trucks are in Texas, I haul dry bulk and these have blowers installed already, they are out of the oil fields. 220,000 miles but 12,300 hours. The owner got out of it because the price of oil killed them. There marked down about 20g from what they go for up here. He told me the only issues where egr related. He recommended a delete. I read your post about the egr cooler going bad about 250,000- 300,000 miles. This truck fits that. I'm do for a in frame on my C15 but thought about going this route. I flew down to drive one home and that's when I ran into this. I don't trust it now. Really confused as what route to go. I unload at 800 rpm 3 hours a day. Should I stay away from any egr engine??? Your advise would be appreciated