Thank you everyone
Having done two of these now (one in ca. 3 months and one in 5 years) I'm not sure I could attempt another.
In terms of man hours, I dare bet there's 1,000 hours in that OTS (building, painting, researching, head scratching, sourcing bits, 500 hours constantly fixing the front suspension (!) etc.) which is a hell of a lot for one thing.
In terms of price? Not really sure. Richard bought me the kit a long time ago now. The unbuilt kits are now going for 500 ish quid on eBay, they are now no longer available new. Puts the DeAgostini model's prices into context certainly.
A question I keep asking myself (don't know why, not sure that I'll ever have an answer) is how much it's actually worth now. Probably not that much, or as much a collector would be willing to pay for it! I'm not selling it in any case. Those 1:8 diecast models from Jaguar were in the range of 8-10K, but they are a completely different kettle of fish to a homemade plastic injection kit - which still has its imperfections and inaccuracies.
Food for thought though!
Andrew - what a lovely project and an excellent result. I would love to be able to do machining like that with all the right equipment.