You may see stress cracks on the areas where the windscreen molding meets the helm and you may see some in other areas where there might be some extras stress due to 'flexing' of the molded deck cap such as corners of the cabin doorway, bimini attachments, possible seat posts etc. Spider cracks on the sides of the hull to me usually indicate impact damage and should raise a red flag since there could be internal damage too.
One main concern for 208s is a wet transom and unless the skin is obviously delaminated, it is difficult at best to identify the issue without a moisture meter and a person knowledgeable in its use. Some moisture intrusion is to be expected. Same goes for locker hatches and anchor locker lid.
The fuel tank ( only one on that boat) is poly and normally should last a long time. Open the deck plates over the tank and look for excessive corrosion. There shouldn't be any.
Look into the bilge for water or corrosion. Again, there shouldn't be a lot since the deck is self bailing and the bilge is normally pretty dry. Check the thru hulls. If plastic, they may need replacement.
See where the deck scuppers are relative to the water line. At rest, they should be above the water. Look while off the boat
.
If the scuppers are under water and the boat has a 2 stroke, the hull and foam may be water logged.
My advice has always been that if the previous owner took care of the hull, he or she probably took care of the motor too. A moldy, dirty interior, seats, bolsters, etc would make me wonder about the care and maintenance. Of course, if the owner keeps a log of maintenance, that is a good sign.
Finally, assuming the hull and motor are up to snuff, do not take for granted the cost of replacing things like cushions, cabin enclosures, helm cover, bolsters etc. If in good shape, they can add thousands to the value.
Options like livewell, raw water washdown and fresh water tank and faucet also add some value.
Good luck.