There was one for sale for $500 over here last year. I looked into it but the 215 is not an economical engine to rebuild.
I haven't looked into a 215 swap for over 10 years, so I'd have to check it out again to see if I could get one to pass emissions, then how feasible to building one, including whether or not any adapters are available or I'd have to fab them?
A 4.7 V-8, like the one in my Tundra may be a smarter swap???