Is your '85 a Monoshock? Should be, and if so the same stand that'll fit the same-framed R80 and R100 will also work for you.
If not, and you've somehow got an '85 twin shocker (it's happened), try to contact member "beemerrich", who now seems to have vanished from the member listings here. Several of us got our R65 Browns thru him,and they fit well and bolted right up. The difference is about 1.5" less overall length. Some hardcore folks have cut this out of the stand from a larger Airhead and welded everything back up
Maybe Justin can link you up with him if his info is still on file? If not, you're back to watching Ebay, where they do pop up for sale semi-often.
Or, if in Europe, you can go with the adjustable "Surefoot stand", which is basically unobtainable here in the States. Something about customs, exchange rates, all that gub'ment nonsense, etc.
Good luck. [smiley=thumbsup.gif]