The Hendrix set looks good it sold at a UK auction some months ago for around the equivalent $3300 which is its real top value as its tatty the seller is trying to sell it for $20k
The seller is also selling a "Jim Morrison personally owned & worn" shirt. It's being offered "with proof", but the only accompanying documentation is a fake letter of provenance that has Danny Sugerman incorrectly stating that the Doors Office was located on the Sunset Strip. It looks like it came from the same seller that was discussed here: