How best to report "Merchandise Sales" for an S Corp. that were reported on a 1099-B

I have a decent tax background and am helping a friend prepare their Federal and State tax returns for an S Corporation using TurboTax.  He is in the business of selling gold and silver bullion as well as collectible coins and stamps to the public and I am reporting all of his sales as "Merchandise Sales."  Three different times during 2021, he sold some bulk silver to another seller of gold and silver bullion, who issued 1099-B's for each of these transactions.  I'd like to just include these sales transactions in the "Merchandise Sales" line, but am concerned that the IRS will flag this return if they can't tie to the total "Proceeds" numbers included in these 1099-B's.  Any advice on a best way to approach reporting these 1099-B sales is appreciated.