I know it sounds intimidating, but if you can turn a wrench and have some patients replacing heads isn't really all that difficult.
Few choice words now and again, but you can rent/borrow most of the specialty tools if needed.
Didn't look all that close, but there's a place in clear-water Florida (Odessa cylinder heads) that you can buy new or re manufactured from. I've had pretty good luck through them. Cheaper than having a machine shop do the same work, typically.
