From bitter experience I would avoid a re-skin if at all possible. Some years ago I suggered dagame to the side of a Coachman - unfortunately in an area of "corrugations" rather than the flat part of the panel. This made filling and local respray almost impossible. I took about 9 months to get a new side - there was then (and may still be) only one panel maker in UK and so the odd panel for a previous model comes well down thier priority list. Then the panel itself is very fragile and difficult to handle in other than flat calm - one damaged and more waiting. The second was damaged in transit, the third was rolled by an inexperienced fitter at the repairer but none the less fitted - a very wrinkled job resulted. The glue used accounted for nearly half the cost of the repair and is virtually impossible to remove, and obviously no point in fitting yet another side over a wrinkled base. End result: cancelled holiday in Spain, new van when I didn't really want one, lost no clam discount to no purpose.
Go and talk to a local car coachbuilder - some will take on caravan work. If not, the reflector, decal, vent even new window idea may be possible.
Sorry to be depressing but some living with relatively minor damage may well be the lesat of the evils.