The stock shocks on R65s were never all that great even when new, and years and miles later about all they're good for is holding the tire away from the inner fender.
General consensus is that about the best
affordable shocks around are the Hagons, from Dave Quinn,
http://www.davequinnmotorcycles.com/. Ikons and such are great, just a lot more $$$, and Dave speaks with each buyer to try and get you suspension best suited to your size, weight, riding habits, etc. Most everyone I've spoken with about Dave and Hagon were very much satisfied.