Nolan Woodbury , Jul 09, 1998; 11:48 p.m.
The URL you mentioned in your question does -in fact- have a small section on the Yashicamat.
Except for a few small trim items (and the meter) my 'Mat is the same basic camera as a 124G. 4 element tessar formula lens, crank wind, Bay 1 mounts, and auto shutter cock. I must admit I've never seen a Luxamar lens model. I've heard of them though.
No matter. If the camera's leather is solid, the glass is clean, and the shutter is close (have it checked) it doesn't matter if it's a 3 or 4 element lens. $50-75 would be a steal. As you know, these units take amazing pictures. Amazing! Shame they still don't make it, but there seems to be a millon of 'em out there for sale!
I'd go for it! But then again I have 8 Yashica TLR's! (And more on the way)