Sports cards baseball football basketball - I am buying - $5,000

Looking to buy your sports cards memorabilia. Prices based on resale value. Tell me a few facts about what you have, its helpful if you tell me the most valuable 3-4 items you have. Also, please share your asking price if you have one.

Especially looking for vintage (1975 & older) or modern autograph cards, jersey cards, patches, serial #, unopened boxes, sets, rookies..