I have an H2 sitting outside. Some of these dimensions are very hard to measure (I.E. the curvature at the top of the rear hatch). Thank you for the suggestions, but a ladder like that will not work... this is a specialized application.
I was looking for something like this pdf, only a little more detailed:
http://www.gmupfitter.com/publicat/2..._Hummer_H2.pdf