Yamaha CS80

HI guys

I just rescued a CS80 from a local basement.

looks good.. was purchased in the late 70s and put in storage in
1982.. tolex is a little worn otherwise it looks and sounds great.

I got the legs and the manual, brochure as well as the sustain pedal..
no expression pedal, music stand or leg hardware.

anyone have any details on CS80 Expression Pedal - subs or other
models which used it?

also can someone remove and snap a pic of one of the mounting screws
(the ones that attach the CS to the legs) I would like to hunt down a
close replacement.

considering MIDI for this sucker.

thanks
-r