One other thing the TAC guys could tell you is if it's a MK1 or MKII if they get a look at the battery access cover... or lack of !! That would be the first thing I'd look at if viewing the car...
Not unusual to see a MK1A with a '67 registration... only MKII piece I can see on it is the MKII headlight covers... and the seller doesn't mention MKII at all...
Don't need the TAC guys - just look at the VIN. What threw me off originally was that in one place, the ebay offering listed 289 as the engine, but then the copy read 302. Without knowing more, I first thought it might be a Mk II that had had an engine swap.
There is nothing wrong with modified cars, as long as they are not misrepresented. As long as we have a free market, the value of something is what people are willing to pay. I think that some of the comments about the car were offered not for those who are very familiar with Tigers, but for those who are not. Someone might have thought it was a Mk II, which usually has more value than a Mk 1A, even if it is missing the Mk II trim. The seller did not specify what Mark it was, for whatever reason.
David