New Turbo & Actuator, 3 miles down , new camshaft??

[bookerjt]

Hello, and ty for letting us join..Husband broke down in Mo. Freightliner said it's turbo and actuator, $7,000. K, it's a isx871 2010, which he got a couple of months ago..Guy was done within a day, took for test drive, then they called Jason (spouse) to come get keys..he drove it down the road to get his trailer, then proceeded to drive under load. Engine shut off came on. He limped it back down, the mechanic gone, new mechanic says $1,100 to diagnose, now needs new camshaft,$15,000. Seriously?? Excessive Crankcase Pressure?? What am I/he missing?