on further reflection, the Trustee is an experienced extractor of fees and will be doing his best to maximize billable hours.
these fees will probably come off the top of all monies collected. Unless this guy is limited to a certain percentage of the total value, it may be wise to slip out the side door you've noticed. Might be worth the 10% to get your money now.
If this becomes a criminal matter, as it may become, you stand a better chance of full restitution as insurance contracts, personnal executive liability, etc. may come in to top off the tank.
There will be account holders who will demand criminal prosecution and will hold for that amount on principle and never accept less than every penny they are owed.
good luck.