Most vans require to be striped back to the flesh as to speak,mine was the same as i bought it from a well meening home come convert chap who had no idea of what he was doing,there were more nails than would build ten houses and wiring that looked as if a 5 year old had been at it with length...
Looks fab but only problem i can see is the windows which look single skin,you require double skin windows or thermal covers for the ones you have,other wise you will be drowned in winter.
Do put up more pictures as you go,first thing get the electrics and wires in where you want them for usb...
A lot ask me what sites i use,i just tell them sites are for wobbly boxes and tents and i rather like picking my own spots to which they reply is that not against the law,just shows how folk are condition.
Yes i get ask about mine,most think you have to get a engineers report at high cost to get it insured etc.
once i have a we chat some say its then going to be on there to do list as factory vans are of radar with there high price,even old ones.
If your using rad end control valves,bin them its better to let all downstairs run on stat,i have a remote stat which i can move if required, up stairs is good for end stats,if moving let the next sod sort it out,cheers.
Welcome along,yes phil will get things sorted here as i have read some tried and could not get on site,do try and bring folk on if you can contact them.:)