I noticed that you were in Missouri. I have a 1600 block here at the house. It is bare but could either be used as a core or to build. I am located 25 miles north of KC and I am willing to crate and ship if you need it to be. $75 for the block.
As far as the rebuild goes, there are a couple of guys here in the local club that can do this for you. They operate MG repair shops now from home.