Believe that figure is now very outdated. They spent a bundle this morning on inflation-linked bonds, and at massive interest rates.
There's starting to be predictions that the entire mini-budget might be the next Truss u-turn, because they just can't see how it can funded in a way that will stabilise the markets.
But Shirley they can just put a wage freeze on public service workforce, and severely reduce funding of social services, NHS etc... that might help save their skins, I mean balance the budget