Two of the three AP stores in Aiken may soon have differ ent food companies running them. On May 13, the Kalmia Hill store and the 118 Park Ave. store were advertised: ‘‘Everything must go. Equipment - inven tory - leasehold. First come, first served.”’ ‘We've had very favorable bids on the Kalmia Hill store,” said a representative of the real estate department of the AP headquarters in Atlanta, ‘‘But not too much interest in the 118 Park Ave., store. The spokesman explained that the bids are on all the fix tures and equipment and the lease will have to be negotiated. The spokesman declined to reveal the price of the possible purchaser, but said that it was ‘‘A cooperative like Piggly- Wiggly, IGA, Red Dot--along those lines.”’ A.A. James, of the AP Atlanta office said that the two stores are up for grabs because, ‘‘They just do not meet the criteria of today’s supermarkets. The Mitchell store is the newest and it has a potential for being enlarged, should the need arise.”’ James said that some 1,200 AP stores nationwide are being closed in a corporate-wide belt-tightening. AP currently owns or holds the leases on about 3,600 stores. The managers of the two Aiken stores to be closed said that they do not know anything specific about the closing. Both stores employ eight personnel.