I'd go with the McCormack, and I'll bluntly state why.
I owned two Belles 150A Reference amps, which both sounded excellent. The problem was that they both had buzzing transformers, and after paying Dave $300 to check them out, they still buzzed. He said it was a problem with my AC, but I have not had any other amps or gear that has buzzed like the Belles. There are other reports on the internet about this issue.
There have also recently been reports of spotty service from Belles (unresponsive to calls and emails) whereas Steve McCormack is one of the best in the business in this regard.
Considering you're overseas, I'd suggest limiting your risk and going with the McCormack.
I owned two Belles 150A Reference amps, which both sounded excellent. The problem was that they both had buzzing transformers, and after paying Dave $300 to check them out, they still buzzed. He said it was a problem with my AC, but I have not had any other amps or gear that has buzzed like the Belles. There are other reports on the internet about this issue.
There have also recently been reports of spotty service from Belles (unresponsive to calls and emails) whereas Steve McCormack is one of the best in the business in this regard.
Considering you're overseas, I'd suggest limiting your risk and going with the McCormack.

