Thanks very much for the ideas an input guys. Sincerely appreciated.
I finally tracked down where to get some (reasonably) today. One of my timing pulley contacts pointed me to one of them, I found the other. FYI< here they are:
Still high but I ordered some:
www.polytech.com $31.82 45x42mm
then of course I found the best place:
www.brecoflex.com
50x120mm $22.80
They have larger sizes but those weren't in stock. I can cut out the widths I need from these and probably get 4 or more out of each one.
Phew.