I used Maynooth Motorhomes to source a replacement window for my van last year. Ger had the window in stock within about two days. Fitting is very straightforward and i did it myself in 10 minutes. Alternatively, if you search for "camperbros shop" on ebay, they'll send it to your door! I ordered a window from them before. It arrived cracked (careless courier), but they just asked for a few pictures to confirm the damage and they forwarded a new one out to me with no hassle. It arrived in perfect shape!!