I agree, I think Mark is just establishing the fact that he wants to import and sell directly to customers than via you. I think this is what you wanted anyway?
If Mark is smart (which I think he is) he has spotted a bigger market in the UK Kitcar scene. This is full endorsement that he wants to supply new customers so he is obviously impressed.
BTW there is now a US supplier on eBay that will ship direct to the UK...
http://www.ebay.co.uk/itm/3208654336...1#ht_500wt_969
Not a bad price as it includes a clevis adapter and an extended pin. Of course, you'll have to add import duty at 20%(I think). And it doesn't include you great m/C adapter plate.
(BTW2 - my own servo upgrade is now in process. Servo and M/C is bolted in. Need to make up my extended pin and do the plumbing/bleeding, etc)