If it helps, I've considered the over the tanks generator option and these are my thoughts on it. (I don't have a chosen solution yet)
Pros:
It looks slick and would be out of the way.
Could be run while hitched or with very minimal effort
Electrical cord would likely reach, or some other extension could be arranged that could be semi-permanent.
Cons:
High for adding fuel
When running, it would be near our heads in the master bedroom (as Tom mentioned)
If we have the opportunity to "remote" the generator with an extension cord while camping, 100lbs would be quite awkward to get down and back up to that spot. It's a bit of trouble putting it in the back of our Excursion. (Too many broken down parts, lol)
A number of folks have had extensions welded to the from to reinforce the rear storage capabilities. Some models don't have a frame that would support this, either.
If on the rear, the same connectivity and semi-permanent mounting could be used, plus it would be MUCH easier (lower) to remove and remote when possible.
If possible, we'd like to put a Bike Rack above the tanks and use the rear for the generator and honey wagon when needed.
Not set on any of those ideas, but might give you some things to consider as you look for the solution that is best for you ;)
