Why no windows? Security or simplicity?
I'm thinking if it's essentially a simple box, then having windows in the back and/or on the sides would allow a breeze to blow through which might be nice.
For cutting down the noise of the compressor, maybe something like the stuff below? Or just not necessary since it will be "outside".
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Steve
'08 Boxster RS60 Spyder #0099/1960
- never named a car before, but this is Charlotte.
'88 targa
SOLD 2004 - gone but not forgotten