Yeah Art,the 6.0 powersroke and to a lesser extent the 6.4 was a basically good motors plagued with EGR cooler,oil cooler,turbo etc.. from sand left over in the block from the casting process(so they say?) some folks never had a problem some Bad problems BUT they can be made a good reliable motor with some mods and it sounds like you found somebody to keep it running good for many miles to come
And ENJOY the Oregon Coast it is AWESOME!!!!,I am in Lincoln City now and headed to Seaside then back to the WA coast,when you are going up the Oregon coast if you can get a spot at Winchester Bay RV JUMP ON IT we spent 3 weeks there and LOVE IT!!!!