All you need to do is write down the cost of everything in the van that is not fixed or in the van when bought. Just guess most of it then you will have a contents price.
ie. Pots and pans knives forks etc - about £50.00
Awning and carpet (You will know the price of this)
Water carrier and waste - £100
Electric cables - BBQ cookers TV etc Say £400
Tools - Hair dryers - shavers - bathroom items -
add another £200.
Tables, chairs, lights, (Things you put in
The awning. Add another £200 ish.
You should be getting near the contents estimate.
Clothes will be covered on you home insurance. Bedding may be also but this is a separate claim - where you may have an excess.
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.