Thanks to the advice given on various threads I have decided to sell our two wheel trailer and get an A frame fitted to our Aygo.
For considerations of weight, reputation and cost I have chosen TAF of Chesterfield. They can't be bad cos they can't fit until mif-February !!
I didn't want the cost of an electric braking system and I reckon the mechanical braking used by many companies will suffice for now.
Thanks again for the advice. If there is a question on ANYTHING motorhoming the answer is on here somewhere
(anyone want a trailer????)