1 - send all the paperwork to New era. That's New Era application AND ACU forms with a separate cheque. New Era will sign your form and forard it to ACU.
2 - yes, send both forms and fees at the same time for Cadwell and Castle Combe.
Finally, there's no garages at cadwell but there is at Castle Combe... I think the paperwork is wrong!??
I can try'n talk a few words in french if it'll make you happy!