Cam lobes look fine. The cost for the turbo maintenance or replacement seems excessive. A new turbo and labor should be no more than $4000.
If you want to get a low mileage used motor, try to find one that's from 2015 or later, after they changed the timing chain guides to the more durable ones. Otherwise, you'll be in the same boat down the road.
I say go PS1 or PS2 with it and don't worry about the timing chain until it implodes. Then replace with low mileage motor or different car. All problems solved! Enjoy the new powa!
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F25 X3 35i M Sport | Frankenfold 6662 | VRSF Race IC | FTP CP | BM3 tuned | XDI-35 HPFP | Stage 2 LPFP | Ethanol mixed | WMI | Oil cooler | xHP | X5/550i brakes
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