Now I'm not trying to start anything here - I'm just feeling for the OP who has clearly thought about this quite a bit and posted looking for advice. Its so frustrating when people feed you all these (serious) alternatives like "Move" - without also offering a reasonable answer to his question. Believe me, I'm all about the humor in things but some posters were beating a dead horse with their suggestions. That being said - I loved the "Dig a couple trenches" suggestion - funny but true at the same time. My advice to the OP is to think about this as simply removing a few inches from the MIDDLE of the cab supports. A lot of folks have a hard time with wrapping their noggins around how to cut off the top then recreate what was there - when most times you can just cut off the top few inches, remove a few inches from what is left, and then re-attach the Top part which you cut off first. - Then have the glass shortened to fit. I know what you fab guys are thinking, "You can't do that because if the posts are at an angle you will be left with a smaller frame (cross-dimension, now 3'10" wide instead of 4'0") - This, of course, is true - I just wanted to point this out to the OP, With this thought in mind, I'm thinking the OP has the smarts to figure out how to modify the dimensions to compensate for this.
- All that being said - I'd be getting involved in your HOA or town govt to attempt to inject some sense (the very thought kinda makes me laugh and frown at the same time) If at all possible.
- Best of luck!