Hi, I'm awaiting the delivery of my new Burstner lyseo td 744 motorhome. Can someone please advise me on what winter fridge vent covers I need please. The dealer has quoted me £200 for the pair, which seems excessive. My current motorhome is an Autosleeper broadway, which came with the fridge covers. Burstner don't seem to include anything (not even a hook up cable).