Sorry to hear about all of your trouble... In my experience (relatively little, but still) loosening the head bolts starting at the ends and working inward (backward from the install torque pattern) keeps the head from lifting one end and pinning the other end head bolts with more tensile strain than they were torqued with... maybe I'm just superstitious, I don't know. Ive run across some stubborn ones, but none have failed to break loose with a little extra effort.
I've also never tried a 3/8" drive to break head bolts loose... never had a problem with a 1/2" breaker bar and a quality hex drive.
Removing the oil pump for complete inspection, regardless of whether or not it is seized, is recommended. If both cams are seized/galled, oil starvation is the most probable cause. This can be a foreshadowing of other, less catastrophic oil-starvation damage, so be on the lookout.
People here tend to be good with helping out when they can... that's one reason why this is such a great place. Hopefully someone is nearby who can spare the time.
Good luck!