Hi Sam
there is a company called Pucer screens that make them but there not cheap here is his facebook page he's called Darren
https://www.facebook.com/pucer.screens" onclick="window.open(this.href);return false;
I made my own a few years back and am still using now but mine is a devon all you need is some thermo matting and some gaffer tape I hade some thermo matting left over after I insulated the bus so they only cost me the price of a roll of gaffer tape
heres mine half down this link
http://forum.earlybay.com/viewtopic.php?f=27&t=38641" onclick="window.open(this.href);return false;