Turnover Gooseneck Hitchs: UnaGoose or Diamond

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I will start by saying I did use the search feature first and came up with some good reading but I have a few unanswered questions.

I am shopping for a turnover GN hitch. It appears that the B&W is by far the most preferred but but I am not sure I like the lever through the wheel well. It seems this may interfere with the airbags that I have on the truck and I would be concerned that in the "salt belt" here in Michigan that it may get a little rusted up.

I am looking at the UnaGoose and the Diamond Hitch as both can be turned over in the bed of the truck without having to worry about something rusting up under the truck. Does anybody have a preference as to which is better? IMHO the UnaGoose looks to be the better built hitch but without seeing them in person this is hard to determine. Which is easier to install (I'm guessing they are about the same)? Easier to operate? Which is more affordable?

The only drawback I see to either the UnaGoose or the Diamond is that there is not a true "companion" 5th wheel hitch for the GN. I do not own a 5er and I do not see myself buying one in the future so this really is not a concern for me.

Thanks for the help.