Conversion on the cheap,

[Brains_transit]

Ford and merc should have addressed the condensation issue as its not a new thing

[StickT]

Its not a new thing but would realistically could be done ?

I'll fit the vent soon and see how it goes, hopefully be alot better. The sides are all lined with loft insulation and then plyed over, the floor has some laminate underlay and then thick ply and carpet over, should be warm enough. A little 12v heater will heat the rear before bed time if were cold