Thanks Dave and MM,
From the picture that MM sent, and the picture in the BMS book, I will hazard the guess that the mount came as part of the horn, under it's number.
I gave some thought to making one out of 1/8 in stainless, just because it is less susceptible to fatigue cracking, and no problems with rust. Dunno yet
Anyway, both of you helped clear up my confusion. It is appreciated.
I got the engine in today. I rigged a tripod with a rope hoist above the bike, ran a strap up between the rocker cover, and it was enough offset so that the engine was centered when the strap was next to the frame
Kicked one leg of the tripod to move the support eye over from where I picked the engine up next to the bike. No scratches on the frame.
From there on, it was a doss, as our British members might say.