The club has value, even if it carries a £1bn stadium debt. There are obviously some servicing arrangements for that debt. But I think your figures for paying it off and turning a profit are speculative at best, if you are factoring in spending the going rate for transfers and wages, which I don’t think you are.
The point is that unless levy and Lewis want to delve into their own pockets to keep spurs competitive, then they are either going to have to sell off your best players, refrain from big spends (transfers and wages) in the market or sell up to a rich investor.