vehicle suggestions

Can't see why it wouldn't do the job, provided the small van doesn't exceed the Hilux's towing capacity, and the tug is in good nick.
Baz

Holidays will be great!

Given that Hiluxes tend to be a bit dearer, (I'm talking second hand) is there another make of 4WD considered to be equivalent or close to, that I might get a bit cheaper?

Without getting to biast or picky and if your not stuck on one brand there just about all as good as one another most are set up the same with independent front suspension and rear leaf. I think it comes down to what vehicle you like the look of and if it's cabin space & driving position suits you a turbo would be the best option. You need to get an idea on how much vans weigh loaded & check out the towing capacity of each vehicle your are going to look at they will be different & if it has a towbar fitted make sure it is not a light duty one quite a few come with 2 different sizes. I would suggest before you tow get the radiator flushed out correctly to eliminate heating issues don't tow in 5th gear a snorkle will help it breath better and set both van and car up so they sit level with each other no sagging rear end then you won't need those weight distribution hitch to compensate for a poor set up.