My "campervan" conversion (classed as a "micro-camper"by Haynes!) is based on an old style Vauxhall Combo- I did it 2 years ago, and much as I'd like a bigger van the simplicity of working on it, the reliability and fuel economy (50mpg even with 2 sea kayaks on top!) mean I'll have it until it's end,then get a bigger one!

I installed a 3 panel carpeted floor area above the wheel arches(supported on a plywood "cross frame"- all removeable if need to move large items!)) which makes the bed space 1400mm wide, and as I'm 5'7"(she's 5'4") the 1700mm length is fine too- at night I put the seats forward and drape an old duvet cover curtain around the front of them for privacy and it adds some space too. The space below is needed for wet kayaking kit, food storage etc and is 300mm high on average. I've ply lined the roof and walls and carpeted them(glued) with hard wearing stuff with rear speakers in them too, there are narrow shelves either side which are at the same level as the pod storage above the seats but allow small strips of the van walls to still be exposed from the shelves to the roof. (I insulated the walls below the shelveswith some neatly folded up geo-textile material left lying around at work- worked a treat!)

I've only used it in the summer when away kayaking, but may need to use it all year round maybe twice a week to sleep in(a long story, moving house but job still in old place...) and realise that condensation may be a problem- can anyone advise of how I could vent it permanently-ie not just wind down windows!? (this would need to be midge proof too, so some netting involved!!)