I contacted an airhead 'friendly' BMW dealer here in Aridzona and the foot rest 'bushing' , item #2 is still available from BMW for under $10US .
Again these are not my words, but the parts manager at the dealership, the foot rest rubber had not changed for airheads for sometime, take that for what it's worth .
Item #14 is for the forward footrest, I've got receipts for the the ones I've replaced on my '81 R65, same BMW part number .
If you take a look at your R65, the foot rest 'bushings' are shaped differently on the front and rear .
I used the RealOEM site, because you can't link to a page on the other sites like A&S BMW, Max BMW, etc .