FSBO: Do i have to fill out BEC (Buyers estimated closing costs)?

[Summer Segeleon]

This is only my second Flip. I'm selling FSBO, and neither I or my buyer has an agent. He will be mortgaging the home. I'm using a standard contract, and at the end there is a place where the buyer signs that they have received a statement of Buyers estimated closing costs (BEC) ..

Is a "normal" person selling FSBO really expected to fill that out? It seems that it would be a very inaccurate estimate since I have no idea what his interest rate will be, what sort of fees the lender will charge him, or any of that. HELP?!