There is always that other guy on eBay that makes t-molding (stievenart.com, I think), but he is US-based also. At least you get 25-ft. instead of 20 from him *shrug*
Don't know where to get a router bit or the molding in UK, though (sorry).
1 1/8" will be fine for joys and buttons.. I recommend Forstner bits myself.