Bargain? Really? For a 21 year old 80000 mile car. The buyer could get a 911 for half that. I reckon you have your tinted Morgan glasses on.
What would it have cost new?
Picture 110 shows a total price of £42,055 with plates but then it has a few options fitted later so probably £45K, certainly would have been under £50K.
https://www.carandclassic.com/auctions/2003-porsche-996-carrera-4-tiptronic-nQdlmg shows same year, similar miles and half the price which does prove you are right however there are other cars on the same website that could prove you wrong. But what would the maintenance cost on a 911 like that compared to a Morgan? Also while it has the right roof is fine it doesn't have a clutch pedal which removes it from my list of cars to buy.