You should be able to take your head to a machine shop and have it rebuilt to spec.
Also, I have seen reconditioned heads with new valves, springs, etc. on the net for around $300. If you need the internet address PM me and I will hunt it up for you.
Also, I have a 94 with 200k on the 22RE. The timing chain "keepers", which OEM are plastic, broke and the timing chain ate a hole through the water inlet where it goes into the engine. Gave similar indications of a blown head. I would replace the timing chain and side keepers.
Good luck.