Take them to a pro shop to get ball park figures. Trouble is lot's of people had them and a zillion second hand sets for sale................Irons would still be OK but few would use those woods these days. That said just for fun some enthusiasts do buy them (woods).
My rough guess is that you the woods would retail US$20 each in fair condition (some scratches no head cover)...........selling them if you have a good ebay rating and a very fair wind get something!
Ping eye irons retail (fair condition) up to $200 from what I have seen. Might be lucky and get $80 - $100 ebay / craigslist...maybe! TRY for more though?? Worth a go.....
Ping putters always in demand so may get a few quid (sorry bucks) for that..............look up the exact model....people go nuts for old putter's sometimes. May find it's worth as much as the iron set (extreme and maybe).
Bag worth nothing.
Consider breaking the set up AFTER you know the price that putter!