I just noticed that you are in the Wirral so its a long trek to Oxfordshire if you wanted to look at the Combi Camps. We live in Liverpool and you are more than welcome to have a look at ours if you want, it only takes 2 minutes to put it up on the driveway.
We've ordered a camplet from Camperlands - hoping to pick it up on Friday for our first trip. My hubby is 6'4" so we were worried about the beds but I have compared the measurements to our kingsize at home and the camplet mattress is wider and longer by several inches.
We climbed into the display model at Camperlands and found it to be very spacious. All the new models have gas assist to open out the trailer as well.