remember Uncle Sam comes first because there are greater penalties and fees than with most other delinquent bills. Put those payroll taxes at the top of the list of bills that are behind. Then you can go from there depending on the amount, penalties and fees.
I know my business account needs to get beefed up and I am hoping a customer I am working with comes through. Expenses on this big order can be relatively low so profit has the potential to be good.