Depending how new you want, we have an older trailer approx 8'x5' (might be longer) which is metal body but wooden floor. Brand new wheels and tyres but needs ramp replacing and jockey wheel needs maintenance. We might sell as we want a bigger one to take all types of livestock.
This is has been brilliant for us as we use for goats, sheep and pigs plus it acts as temporary shelter when needed. We are in Wiltshire which would be on your way to Devo