From what I have gathered, there were only 1500 imported to the US over the entire Trooper RS era. That would 85-95 IIRC. I am sure there are some expert Zu statisticians that give the exact numbers. I know I have only seen 4 RS in my life: Swedes, another one at Moab, I can't remember her name, but it was a second gen, my wife's and Matt from Indy4x4 brought his out to the last URE meet.
VXs I have spotted around town, and whatnot. Never an RS!!!
As for helping swede's wipers, I offered, I found some at a junkyard that were in working condition, he said he didn't need em I took em for the blades for the wife's. Hers work now, good blades, squirters and so on.