Thanks for the first-hand advice. I think I'll go repro after seeing a Unertl on GB for $4600! My M73B1 was less expensive, but I'm not sure I want to be carting either around when a repro fits the bill. I had considered giving Chuck a call as he is certainly one person I'd trust to do a great job putting one together.
Thanks again, oh, and I'd like to be on the line soon!