Hey LLoyd, if you will try and keep the topic type posts in the correct forum. I'd guess this one in the finishing/exterior forum. Makes it easier to find stuff later via category and makes searching a whole lot easier! ;-)
I'd check with RCR and CAV first, both are over in the US en masse and would be most likely to have one they can ship you straight away. I'm sure all of them have the parts, but located in the UK and Australia for most companies.