Your IP is entitled to charge 20% fee on all realisations into the arrangements. This will include the lump sum you are proposing to raise.
On the basis of the figures you have both paid in to date - ie £13,750, the nominee is entitled to nominee's fees (inc VAT) of £4,265 and supervisory fee (inc VAT) of £3,231. If you pay over £10,000, he will be entitled to draw £2,000 of that leaving £8,000 plus the balance of monies held of £6,254 to your creditors - possibly even charging and additional variation fee, although I think that would be rather churlish.
If my reckoning is correct, and with debts in excess of £75,000, I think you are far away from effecting anything like the return you originally pledged.
Regards, Melanie Giles, Insolvency Practitioner for over 20 years.
For further details contact me at
http://www.melaniegiles.com and view my IVA blog at:
http://melaniegiles.blogs.iva.co.uk