Go for a cobra, decent piece of kit,
Full closure facility (Not needed as windy windows)
Interior sensors
Boot and bonnet sensors
2 points of immobilisation
2 fobs
Tells you if a certain area has been tampered with by number of beeps
Key code single button entry if fobs are both lost instead of a slip key
Additional levelling sensor package available
You will get this at a good price

Cobra globe 3100