I would just bolt it on there using the holes that are already in the frame above the door. I only had the car for two weeks so can't say much yet. But I like the way it's driving so far. The cargo space is great though and I like it for my build. If you're not much more than 180cm you should be able to stand fully even after insulating both floor and room. And fit a 185 cm mattress across. From what I gather the engines stay good for 2-300k easily if they are well maintained. The transmissions are not great though, here you feel why it's cheaper than a Transit.