First you will need the permission of your IP -- then, assuming this is forthcoming, you will need to find a finance company who will accept you. Moneybarn are sympathetic, though charge higher rates, or you might be able to get a PCP contract.
My opinions are merely that .. opinions based on experience. Always seek professional advice.
IVA Completed 23rd July 2013 .... C.C. 10th January 2014 http://foggy.blogs.iva.co.uk