old bills, looking to buy (San Diego)

I'm interested in buying old dollar bills, especially red seal twos and blue seal ones (you know, silver certificates).
I'm hoping to find a full set of uncirculated bills with sequential serial numbers.
Just a regular person here, not a dealer.
If you're selling, please let me know! Attached are some example pictures I found online for what I'm looking for.
And please, no suggestions to check eBay; their prices are insanely high!