Hi Denise and welcome to the forum
IP charges vary from case to case and practitioner to practitioner.
Expect to pay between £1,500 and £2,500 for the nominee's fee, with between £500 and £1,000 each year for ongoing supervision. Of course these fees have to be agreed by the creditors as they are drawn out of the monies you pay over to the IVA Supervisor, so creditors effectively get paid the balance.
A dividend of 75p in the £ appears to be a good offer, and the timescale can only reduce if you are in a position to pay off all of the debts and costs in full.
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