I think that you ought to consider re-mortaging again and pay those debts off in full. A 90% loan to value mortgage would do it, and would cost in the region of £975 assuming an interest only payment at 6.5APR. You can do this on a self-certified basis, ie you just confirm that you can afford the repayments, and your income and other debts do not get taken into account. I am surprised CCCS did not suggest this to you in the summer. Do you now have a redemption penalty if you come out of the new mortgage early?
Do bear in mind though, that you are taking on a much larger commitment, which is secured against your home, but as you are not technically insolvent an IVA is unlikely to be accepted by creditors. I would not continue with a debt management plan if I had the opportunity to settle, and you might even be able to bargain discounts with your creditors for early settlement, and thus face borrowing less.
I can recommend a good mortgage broker if you want to explore this as an option.
Regards, Melanie Giles, Insolvency Practitioner for over 20 years.
View my IVA blog at:
http://melaniegiles.blogs.iva.co.uk