I live pretty close to MTW, and own a pretty big hangar (80x70), with all of
the amenities, like a nice air conditioned buildout, running water, epoxy
floor and lots of light.

If someone in a Lear or Citation wanted to rent space I would probably
charge them $1200-1500 a month. The FBO charges around 1200 for their mass
hangar, although they do offer pull out service.

I looked pretty hard at buying a 414, but ended up buying the new hangar,
which was a better investment, since there is no other land available to
build a new place. The 414's burn around 35gph, so around $450-550/hour
seems pretty close.