Hi Jkyle69,
The South African KCC kit was very much based on the early KVA designs (no two of these are ever the same for some unknown reason) and as such used the complete front `K` suspension frame from the MK3/4/5 Ford Cortina and came as a choice of either Ford Granada or VW Variant hubs as a fitment to the rear swinging arms supplied as part of the chassis kit.
I've a copy of the original KCC build manual here and it is almost an exact copy of the early KVA MK1 (similar to the even earlier KVA MK111 chassis) and is often mistaken as such.
As Brett said, the `C` type chassis is a late KVA and may not be the same as yours, or maybe KCC changed over to this later KVA chassis?
The KVA `C` type chassis isn't that bad realy and if that's the one you have it's a latter version than covered by the manual I have here, if built well there's no reason why it won't make a nice car. As you say, the buyer should come and take a look and make up there own mind.
As an aside, the KCC factory are still going and make a lotof Cobra replicas but if you get in touch with them with anything to do with your GT40 they will probably ignore you, as others have found in the past!