We bought an ancient factory-fitted Ford Frontier campervan to see whether we liked the idea of camping - we do! - and now we have the idea of replacing the van with a conversion.  Our current van is 4.7m long, 1.9m wide and 3m high.  We'd want something at least that size but not much bigger, and not older than six years old.  What make and model would make a good replacement?  Or does anyone have suggestions about models that we should definitely avoid?