Database for a thrift store/flea market

Database for a thrift store. can you build a database to run layaway,consignment,space rental,merchandise rental,daily purchases and from who,daily sales totaled monthly and year,wish list,employee time with sign in and sign out,buyback,client list,phone book and calendar,check writing,inventory,tax records,site search,business [login to view URL] be a hosted script or it can be ran as a stand alone on a pc. I don't want a pos system. This is a script or database for record keeping in a thrift store/flea market. Can be done in any format like php,wordpress,access.I must be able to password protect and generate a key for each copy used.