Small Food Unit To Fit On Pavement Site?

We used to have a mobile trailer selling Thai takeaway outside a local pub. But a new landlord wanted to do his own food. We have now sold the trailer, but have been offered a pitch on the pavement outside a nearby shop.

It's a busy spot and we'd be sharing the pitch with a takeaway waffle stall. As there is not much space, there is not enough room for a trailer.

Do you know where we could find a small food unit with ban maries to sell curries/rice from? Or would it be better to cook the food in our home then take them to the pitch. We don't have a very big budgetbudget...