I don't personally know who is our manufacturer of the door mirrors. All parts are bespoke to Matech. Matech has designed every component (internal and external) for the car, apart from the chassis which is original Ford. If you are thinking of getting those mirrors for your street car, you do realise they are attached through the window, (that does not open).
As for the race team, yes it is up for sale, so please get in touch is you are interested or know someone who is interested in buying a race team that competes at the very highest level of performance and professionalism. As I mentioned above, the development of the cars, both the existing GT1 car and the forthcoming LMGT car are completely custom designed and only use the chassis from the original street car.
Steven at Matech.