Obviously someone with good taste. wink
Here what I would suggest you look at.
1) Make sure the hood is perfect as it,it very expensive to replace.(3k at dealer price)Make sure that it fits nice and tight otherwise you will have leaks.My car is a Lusso,which has the powered hood.These can be a little erratic.Mine sometimes doesn`t go back up without a helping hand.A standard model Spider,with the manual hood may be a safer option on Spiders of this age.
2)The paintwork on the bonnet is very susceptible to chips,although this is more a cosmetic issue as the bonnet is composite.Might be a bargaining point though.
3)Check the passenger footwell for signs of dampness.If its wet the roof may have leaked,or it maybe the aircon drain is blocked.
4)Check the inside edges of the front tyres for uneven wear.The toe out adjustment may be out and require adjustment.Mine was set wrong at the factory!Only costs £20 for wheel alignment.
5)Ask if the cambelt has been replaced.
6)Check the rear suspension bushes for play.If caught in time not to expensive but if left can cause damage to subframe and £1k to fix.
7)Check very carefuly all electrics and switchgear is operational.
8)Ask the owner how often he checks the oil.Critical that the oil is kept topped up on the TS engine as it does have a tendency to use oil.
9)Run the engine.If it sounds like a diesel,it probably needs new cam variators.Not that expensive to fix but again a useful bargaining point.
10) Most importantly ask to see the service history,receipts,etc.Try to get a feel if they are an enthusiast.The Spider is not unreliable but does need quite a lot of TLC.
If you need any more advice please feel free to send me a PM.
Another useful site is www.gtvv6.com.
which has a buyers guide. Although it is specific to the V6 GTV some of the same points wil apply.
Good luck with finding the right car.