Crossover pipe were often the first thing to go in the US. I believe they were used for US emission regulations and probably not needed in the UK even if they were installed. We don't get to see the manifolds but if they weren't, I certainly don't think Lotus would go to the expense to make two different intake and exhaust manifolds. In any case, were I to score the car for originality, I would take off VERY few points if the pipes were not there - but then I'm not a concours judge!
[oops! I just read the flapdoodle on the car and it is a US car not a UK car. My point still stands.]
There aren't enough pictures to decide that the car is otherwise original and even if it is, 33K GBP (almost US$55000) seems like a lot of money for the car. Europa prices have gone up recently and I hope our cars do appreciate to that level but so far they don't seem to have gone up that far.
[Seeing that it was shipped from California to the UK, I wonder if "original" Europas get such a premium there. Also looking closer, the seats do not appear to be original since they appear to have cloth inserts rather than all vinyl. Also, the window lift switches should be all black rather than have what looks like an aluminum "frame". It's been a long time but I don't believe the console cover was ever covered and stitched. I think they were the same black vinyl ones all the other TCs got. It looks to me like it was dressed up a bit (which in my mind is not a bad thing but it's not "original". If so, this makes me a little uncomfortable with this car. Who would go to the expense of covering the console cover, not drive it, and then call it original, and then ask A LOT of money for it?]