Gas Fridge Venting

[Ferg]

I'm toying with the idea of fitting a fridge into the lower part of the cooker/wardrobe unit on my Miami (Continental) interior. However I am aware that, aside from the flue, it requires vents to allow the rear of the fridge to cool.
I assume this will involve some big vents cut into the side of the bus which will either look unsigtly or downright ugly depending on how much effort I put into them.
Has anyone else achieved this installation without full-on butchery? How big do the vents need to be? The fridge is only small....

 

[danbus]

i think its only ventilation required in the cupboard... so the warm air can rise away and cool air can get sucked in.

 

[Ferg]

It would be handy too know how much venting it needs and whether a 12v fan might help matters and enable me to put a smaller vent in.