Reading my post it looks like I was a naysayer...
The point I was trying to make (ignoring my dislike of tin boxes and trying to be constructive
was that what you want to achieve already almost exists - albeit with a slightly longer walk than it would be if you could leave your 'plane outside your own door.
At Bembridge, and also at many other aerodromes, there are already mobile homes within (very) easy walking distance from the strip.
What I would therefore suggest is that you:
a. find out how those similar offerings are doing financially
b. find a way to clearly differentiate your offering from what already exists
c. try to estimate how that difference will translate into increased income/reduced outgoings...
The UK needs something like this.
Call me deluded, but I think that the UK already has lots of things very close to this.
Out of interest, Shoestring and FBM - have you looked at purchasing/renting a caravan/mobile home in one of the many campsites/caravanparks close to aerodromes across the country?
If not, why not?
Baikonour