you should be able to tow the van with that car no problem,
but if you look on the internet it will tell you there for definite.
If by papering you mean the walls, yes this is not a problem.
Painting the ceiling is no problem either, but just remember that the van will move and the strips across the ceiling will too and this will crack the paint if you paint over them.
Amazing family weekend with old steam engines, classic car displays, market stalls, and full catering and bar. And camping on site - Save £25 by booking in advance.