Try Steve at Chipguard. He deals with 3M Ventureshield, which I've had on four Monster tanks. The kit for the 1100 is two parts for left and right side. I asked Steve for an extra piece for the centre section and he gave me an A5 size sheet at no extra cost, which I cut to fit. £40 for the tank kit.
https://www.chipguard.co.uk/shop/mot...-diy-tank-kit/
http://www.ukmonster.co.uk/monster/s...ad.php?t=56977