You'd have to face some competition in Europe : EuroAtlantic (also a 767 operator) and Hi Fly (12 A330/A340, a 310 and a 321), but as long as you can offer a low block-hour price, it shouldn't be that hard. But you'll have to create a good relationship with the main european brokers anyway, as a very large part of the ACMI market here goes thru them.
Anyway, PM me if you want me to compare your pricing with what is done by others (cannot provide data directly due to confidentiality agreement with my former employer), or if you're in need of a station manager in Europe
