I don't know a lot about planes, but my older friend has a Yak 53 (he says they did not make many, I'll take his word?). He would like to find it a new home, as he's in his late 70's. It has a German, 3-blade prop. and is located in Alabama with him at his hanger. If anyone is interested, happy to put you two in touch, this is strictly a favor. Thanks!