Asset reversion DC Plan

[Guest pensionadmin]

One of my clients is a one man corporation with a Profit Sharing Plan and a Money Purchase Pension Plan. Contributions are made during prior year that go over the 404 limit and so are non-deductible and can't be allocated to the participant because of 415 limits. A 10% excise tax is paid. During the current year, the plans are terminated because corporation is defunct. Participant has comp that uses up the non-deductible contributions in the pension plan for the current year but not enough to allow allocation and deduction of all of the carry forward non-deductible contributions in the profit sharing plan. What is the correct way to handle? Must all remaining non-deductible contributions revert to the corporation and a 50% excise tax is due? Is another 10% excise tax due? Could plan fees be paid from the reversion amount to reduce it and thereby reduce the 50% excise tax? (Similar to db plan reversions?)