My wife and I have seen a Swift Challenger 540 and liked it very much. We had 2 slight concerns, however, one being the durability of the combined fabric blinds and flyscreens. Also on the display model, the seal on the wet room door was bent under the door-frame, preventing it from closing. Will this be sorted at a PDI or is it more of a design problem. Prompt responses greatly appreciated as apparently the price goes up on Wednesday!