Hi Jackie and welcome to Eribafolk

First of all, can we ask which area of the UK you are posting from? Secondly, do you have an age or price in mind. 420s (with a front kitchen and a built in loo) have been around since the mid 90s to the present day.

Randa

Jackie,
best of luck in your search. I'm guessing you know of the usual websites, but have you access to the C&MC magazine. I think I saw a 420 for sale last month but cannot remember the year.
With vans in short supply you may need to be flexible on age. Condition is more important than age and you could find a slightly older van in excellent condition and with a higher specification. I recall a 2018 Troll for sale at the end of last year that buyers were walking away from as condition was so poor.
Whilst the post 2010 vans are taller and the electrics improved, the build on earlier vans does tend to be better and the white over grey exterior colour scheme is more forgiving regarding showing of those annoying little wear and tear marks.

Colin