I have always thought the Mr Speedlux is a bit on the pricey side but from what I have heard prices are normally more of a guide and there is a likely to be a deal to be done. However I do know that someone made an offer on the navy S2 which was less than asking price but more than auction price which was turned down.
That said the 1600HF he has seems reasonable, it is a UK spec car RHD and raised outer lights which limits the market to UK / Ireland, it has quite a few miles, documented rather than Italian imports which often have little history, it might need some TLC but compared to LHD cars from Europe the price seems good. You would need to see it in the flesh to validate that and I agree it needs to lose the bumpers.
I would also comment that I had the same views on Tony Rosewell at Princes Risborough, nice cars but very strong prices that was until I went to see him and talked to him about how he sources his cars, the checks (he always goes to Italy to see them before finalising a purchase) and prep work he does before putting them up for sale etc. Tony tends to focus on the rarer cars, limited edition models, low mileage or proven race history etc. Mine came via Tony and there was a deal to be had and he always offers to buy his cars back. Talking to him yesterday it appears that he can still find cars that meet his requirements in Italy but they are proving to be more expensive, he still rejects 9 out 10 cars he is offered and many of those then appear on other import websites.
I though I had bought into the Fulvia at the top of the curve, which wasn't an issue as I have no plans to sell, but I wanted to be sure I had a good as car as I could get which I think I have but it seems prices are still strong for the right cars.