Good find, -- the 606 is about equal in the HP department as the 602 turbo, but the 602 feels alive when the turbo pulls it, the 606 feels like a Honda B16 - you rev it like crazy to make decent HP (yes you rev the **** out of the 606 diesel in NA form to get respectable power)
I would look out for timing chain noise on the 602, there were some models with a weak chain in them, but at 440K - I think it must be changed by now, look for headgasket leaks externally - they fail usually.
From the donor, get whatever cosmetic parts you can shove into your car boot and seats, get the transmission too if yours is auto, other hardware like glass regulators etc if you need them..
