Hi Colin,
I must say the chap does show you pictures that would suggest it is far from a good car, so not exactly a dream car, more of a nightmare.
There must be good cars on the site but I have yet to see one that even looks as good as the pictures.
Some members may remember my problems when looking for a P38 we looked at dozens before we found a good one.
Locally is a company that almost exclusivly sells its cars on line and after looking on ebay and at the cars in the company compound it was difficult to imagine how anyone could describe the cars as good let alone immaculate.
Read all details with an open mind, most details are regarding the standard features of the vehicle and not relating to its condition or use. Most will not have seen a service in the last 20,000 miles with little or no proper maintenance, only that required to get it through the MOT.
Don't travel too far from home as it could well add a hundred pounds for fuel to the price, check,check and re-check all the electrics and engine, never go alone, take someone with you who knows the car. Follow lists of checks given in other threads on this site and as said keep an open mind, the right car for you will come along and you will know which one by experience.
Good Luck with your search.
Fred