Thanks for the reply Colin.
The £2.5K charge is for building a complete 7 from a Caterham kit and putting in a Minister engine. The reason I ask is that I'm thinking of going the Duratec route and it seems a good way of getting a Duratec properly installed (i.e. not by me) and not end up with a spare, Caterham supplied engine.
Of course, I don't know the specifics on what Caterham charge for a kit with no engine as I'm just starting out but hopefully the Minister chaps should, as they advertise it as a service.
I expect they'll be at Stoneleigh so would like to know a bit, before I talk to them.
Thanks again, Bert