Toytuning (booo hissss) used to offer them but I can't remember anyone stepping in whenever Toby got evicted from the scene. A quick google revealed these though:
First one is pricey but a known company. The second is also pricey but I've never heard of them before. Bound to be some UK based options somewhere though.
I'm into manufacturing and possible looking at producing mine first and possible selling them but would need to open a trader account?! But would need to see if it gathered interest first!
In my experience you would be better aiming your services to one of our current traders rather than applying straight to the forum itself. It would cut down on the application process and usually without an established track record it can be hard to acquire a trading account.
Supplying an already established trader may be the perfect solution?
Haven't heard of any Motecs for sale recently mate but if you check with our traders (TD, TB, ECC, etc) I'm sure they could advise on prices and availability for you.