Hi dandk and welcome to the forum
An IVA is a serious financial commitment, and you should have continued to pay your share of the contributions or had the arrangement varied to suit your new circumstances.
Your strategy to deal with the creditors may have seemed sensible at the time, but you do not get any benefit from coming out of an IVA and then dealing with your creditors under normal contractual terms. Your credit rating is still affected for the same length of time. And in any case this should have been planned in conjunction with advice from your own Supervisor.
You must now put your suggestion to the Supervisor to see what they advise. I note that you have taken no account of their fees which will also need to be paid if you are to avoid bankruptcy.
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