Ok, GPS tracking... Only applies if the RV is moving,,, Most RV issues in storage lots are break in.
There are many Cellular based security systems.. They call you if there is a problem using Cell Tecnhology
For security (intruder detection) understand that by the time the alarm sounds it is TOO LATE, but that may be coverable (Police response will not get there till they theives have split)
My Recommendation:
Untrasonic or other motion alarm, tripping a hidden video recorder (They make some very scary cameras) feeding an OFF SITE recorder if possible.. Or a well secured recorder within the rig
A Wi-Fi Hot spot to broadcast the alarm
Verizon has a module that plugs into the OBD-II port,,it does suck some battery power but if you can use SOLAR it should cover it
Features: Hot Spot.. GPS Tracker,, OBD-II Sender,,, Wi-Fi and Blue-Tooth
I checked with T-mobile... They say they have it too
And that means AT&T will have it as well.
Couple something like this with the alarm system.
Hand the Police full color prints of the thieves.
(Short Story.. Man got mugged, Called cops, they ask for description, he told them He could do better if they dropped by his "Office" a few hours later.
Seems his occupation is a portrait painter. But he specializes in folks who can not "Sit".. He has 'em come by (or goes to them) Poses them,, Says "Have a nice day" or "I will call you when it's ready" and then he paints the portrait,,, From Memory.
He handed the detective a full color portrait (Now hangs in the chief's office)
They took one look at it and ..... The Mugger suddenly began hanging out close to his portrait... (IN the nearby Jail).