Sterling Europa 06 awning channel

Hi,

Unfortunately I recently squashed (beyond repair) about a foot of the offside lower awning channel on my Sterling Europa 540 2006. It never gets used as its on the wrong side for the awning/skirt but for the sake of trying to keep the caravan looking tidy I'd like to cut out the small length affected and replace with some matching channel. Could anyone shed light on whether the channel is manufacturer/model specific or generic (as it has to match the rest of the length) and if it can be aquired in small lengths? Does anybody have abit spare that they'd like to sell me?  Kind regards