Neil Williams is your man , he has a nice set up , and lots of experience in this.
We've got 3 now spread across 2 different sites, the intention is to get another 2 and that'll be our income for retirement sorted.
Alan, give me a call (numbers are on the websites) and I'll try and cover the pros and cons.
BTW it's very very unlikely you'll be able to buy direct from manufacturers, I did try as there can be £6k markup between manufacture price and sited price, so you'll be stuck with buying from the site you pick, albeit you can buy any caravan from any manufacturer.
Do I pick up work? As an owner you eventually make friends with our owners and what I do is arrange at the beginning of each season to do as many as I can. There's not much money in it but having a 'holiday' whilst putting in a few hours which funds the fuel makes it all worthwhile.
One of the sites (Parkdean) isn't too enthusiastic about having a marked commercial vehicle on site during the summer months but aren't bothered during the quiet months, the other (family owned) are so much better with their attitude.