Fine, you obviously know it all and don't want any further suggestions on security for your (expensive?) caravan's protection, you carry on.
I'd bet money I could 'do' your van when you are out shopping one Saturday afternoon.
That is not a threat by the way, just confidence in what I learned and know about security over many years.
Before 'D' jumps in again, just to let you know I've worked for and still do work for one,or other, of the top national security companies for 90% of my working life.
Anything from sheds, small houses all the way up to the Olympic Park and everything in between that you could possibly think of, plus others that I can't even mention.
So, don't forget, I "obviously no nothing of any use"