I am willing to help all i can ,but am still learning myself . Like last week after putting on over 8000k on and number of trips , I realized it has a tilting steering wheel . big thing is parts they say it is a delica but it is a 200 truck chassis. I also think the frames are cut and a one foot piece was added just ahead of the rear spring brackets . look at yours and see if it is all boxed in this area . I think that is why they came out with the 470 . this I be leave is a metric measurement , so the 500 is 5 meters long and the 470 is 4.7 meters long . I revert back to the guy that imported my van when i am in real trouble , but I am not sure he wants to be a support guy for all of us .One area you need to check is the rear floor area under the kitchen ,fridge and hot water tank . It is not very accessible until you remove the spear tire and gray water tank . mine had dry rot in the plywood ,and i had to replace it . I am converting my 500 into a overland or expedition style . if we can exchange email i can send you some pictures .I do not know how to put them up on this site though . one day i will get some one to do it for me. your camper looks great and they are a lot of fun ,I am currently getting about 15 miles to the gallon . PS I also have a VW Rialta but i will be selling it soon .