Just to let you know if you are purchasing an ARB canopy for your ML Triton you can order it with the front sliding window mounted in reverse so the lock is on the outside, that way you can access the canopy from the cab as well as lock and unlock and lock the window.
I went to my local ARB shop and they got the manufacturing guys to try it to see if it would fit and work on the next triton canopy they made and it works fine.
so if you order one and want this feature don't forget to ask.
(i spoke to Shane the local manger and Wollongong ARB)