I don't buy the rust issue. We spend thousands on trailers, and even with the stainless brakes there are still galvanized parts. I wash the trailer down, justlike my boat after every use. It's maintainence thing. So we have to get new shocks every year.
We put on 200K plus even half a mill boats on stiff springs and beat the crap out of the boat every time we go over a rail road crossing. We just don't feel the boat taking the hits. Out of sight? out of mind?
I'm seriously thinking about doing something. May be put the bunks on some HD rubber cushion? Or some type of jell packs? I want my Senorita to start "jellin' "