Havent updated this in a bit. Finally got the truck put back together and have been driving it pretty much every day for a month or so. I've put about 400 miles on it so far. I believe a sticky thermostat is what caused my gasket to fail in the first place since the temp was being a bit funny for the first couple miles of the new head gaskets. Swapped a new thermostat in and seems to be doing pretty well now.
I changed the lifter trays for new factory GM ones and upgraded to the MLS gaskets instead of the carbon ones. lots of cleaning to get all the carbon off the sealing surfaces but I got them to seal and used some new FelPro TTY bolts.
about 3,300 miles on it since the swap from bags to a lift and I'm loving it!