Well I just joined the club of the owners who did their own replacement.
Initially I did the epoxy repair about 2k ago and it held up beautifully, however... I found pink crusty stuff while looking for something else right at the upper edge of the aluminum / plastic junction (from the engine bay side) and decided that my experiment was over and not worth waiting for things to go south.
New radiator it was.
I will only add to this thread that I didn't have to remove the bumper or the fan and it's clutch and managed to remove the old one just fine by loosening the trans cooler (or warmer if you'd like) tips (angled up originally) down 180deg and pulled it straight out.
It helped out to throw the AHC in to "High" as it gave me a little extra room to work under the truck.
New radiator went in no problem in reverse order.
A couple pics of the situation below:
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