Collector seeking old rock shirts (hayward / castro valley)

Just a die hard music fanatic that only wears older tees and I'm hoping to catch someone before they donate their unwanted shirts to a thrift store where they end up in SouthEast Asia or sold for quaters at a yard sale.
I'll make it worth your while and pay a fair amount for anything before the 2000s Old concert shirts obtained from shows back in the day or old beer, Harley Davidson/ biker related shirts as well and condition is not an issue.
interested in heavy metal, Thrash, hardcore, punk rock, classic rock and country music.
If you have a box hidden deep in your attic or basement or just dont wear them anymore I'd love to throw some money your way for them.
Will travel to you anywhere in the Bay Area.
Thanks .