R&R bed is at least 65.5kg (Cambee claim to have the lightest on the market)where have you got 500KG from?
as best i see it, RnR seat and interior, maybe 50, kitchen, no more than 50 more, wiring and accessories, 20, battery, 20 more.
I dont rate the suspension on my camper at all, but i dont think that its 500Kg heavier than unladen before i put the kids in the back and the wife in the seat?
anyone actually weighed their van before and after the conversion? maybe a conversion company will have done.
Furniture 80kg basic units (Evomotion design)
Fridge 17kg
Cooker sink 6kg
Table 8kg
Battery 24kg
Water tank 7kg
Floor 16kg
Heater 3kg
Pop top 100kg
Bed board 10kg
Noise killer 50kg
386.5kg so far before any gas, water carpet windows wiring charger roof rack bike rack bedding lights subwoofer…
So 500kg is quite likely, and very easy to end up overweight.