Sullivan juxtaposed the arena trust with the basketball one, claiming they served a similar function.
"The PG Arena Trust relies on us to make contributions because it's a service to basketball. We didn't expect PG Arena to write off our debts.
"So it looks like everyone is receiving something and the balance [of the debts] will come from the income of our leagues."
Sullivan felt BBH were in the "home straight" and on Friday week they would be wiser.
It was imperative, he said, for the organisation to move away from dependency on handouts.
"Last year we were less than 50 per cent dependent on grant income."
They expanded from 300 teams to 900 in the past five years but sticking to the same number of staff was a mistake.
The debts arose because of the staff "mismanagement" in the handling of rep tourneys.
Kath Samia, recovering from surgery, is expected to succeed Chris Hart, who quit only weeks after becoming general manager.