I think the type damage he speaks of is from the cam chain breaking.

Any 123 with a five speed is desirable. But.....a broken chain is a broken chain and you should expect a broken cam possibly some cam towers and a lot of work to fix. I have a spare cam if you need one.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.