I installed one of these kits in my 1999 Tradewinds about three years ago and it's worked very well for me. The hardest thing to find was the contacts between the door and the door jamb. I finally found one from Winnebago for a Rialta "C" class. My door latch was already setup for the solenoid.
I did install the ignition kill relay but not the remote start function.
The instructions were pretty clear and complete. They seemed to be written by someone that spoke English as a first language.
Dick
https://www.amazon.com/Security-Stat...less+entry+kit