Fixing a bad delete

[5jranch]

Howdy,

I have a truck that I think has a bad delete. Truck is a cm2350 that had 480,000 on it when purchased. Fully gutted exhaust, egr removed but coolant rerouted to back of the block. At 540,000 truck started idling rough, missing and hazing at idle. Found a crack headed on number 2. When ahead and Inframed it and put a new head on. Now at 590,000 it started building pressure in the coolant. Pulled the head today to find 7 cracks in the head. Some cylinders are cracked between intake valves. 1 cracked between exhaust valves and 1 cracked in all valves. No history over heating the motor and egts rarely see over 900. Truck is tuned be aggressive and will make 35-37 pounds of boost. Liner height was check at the inframe and again today and everything is at 5-6 thousandths. Head gasket looked great. How can I go about solving this moneypit. Thanks in advance