Your Reasonable Living Expenses are around €2,000 a month, which leaves €800 to contribute towards your debts.
The interest alone on €240,00 - the value of your home would be €1,000 per month.
It seems to me that you can't really afford the house you are in. But could you rent somewhere for €800 or less?
If so, you should consider selling the house and escaping the negative equity through a Debt Settlement Arrangement or bankruptcy.
I don't see how a Personal Insolvency Arrangment would leave you enough to live on, yet get approved by the EBS.
What ages are your children? Can your spouse earn some additional income?