BILL-you know you're going to need a head gasket repair, sooner or later... . Get a new head coming, already oringed, studs, and have'em port it up. Be done with it. IF you wait until it blows you might get to enjoy trying to get oil out of the radiator and cooling passages in the block, or water out of the oil system or both. That's a mess I rather not have in my job. It adds a lot of time and labor into a headgasket job. The last time my head gasket blew, my engine got real hot, because the coolant was being blown out by compression and I was towing. I almost did not catch it in time. Granted you don't work your truck, and will probably catch on before damage is done, why take the risk?
Michael