Well, if my math skills are intact, you have put almost another 100k on the motor since the seals were done. You mentioned "head reworked". What did they do?? You could be in the pipeline for at least new seals. If the guides were done, then they may be OK, if not, then it's certainly time for that item as well.
2000 Dodge Grand Caravan SE
No matter what you fix, there will always be something else to fix..
"Warranty" is just another way of postponing the inevitable.