Turn a small drill press into a Bore/ Hone. Bolt it to the top of your engine block & do your own machining .

Putting the jokes aside, have you tried contacting places like this in your area? This place is probably 1 1/2 hrs away from you.

Old Sckool Muscle Shop

Yes, I took time to locate your position in the world, and find speed shops within a short drive from you.