Hay customer needs 10% sugar

I have a customer that needs hay with a max of 10% sugar in it. I normally have just the field of hay to accommodate her but not this year.. it all got baled before August.
Her horse is like 38 years old and she says he will get Founder if the sugar is over 10% I feel kinda bad that I can't seem to get poor enough hay for her. I need some really late first cut but can't find any. What a dilemma.. and she wants 250 bales.. best part is she tests the hay before she buys it so we know what it is. So all my hay so far has been too good LOL, not funny for her but good for my other customers.

Hay customer needs 10% sugar