Hi
It,s impossible to say with only limited info,but a few things to consider are
1] A DMP will take close to 8 years to complete if all your interest and charges were stopped.
2]An IVA will run for five years,normally,and all interest will stop plus you will be safe from any futher ceditor action.
3]Are you sure that £800 is your disposible income ?
If in reality it is less then you will have long,long struggle in either a DMP or IVA.Make sure that this figure is correct.
4]In an IVA you can only repay a maximum of your original debt plus IP fees and statutory interst.
5]Your equity will be unaffected in a DMP,whilst in an IVA you will probably have to pay over 85% of it but this may be limited to 60% of your disposible income[your remortgage can cost you no more than 60% of your disposible income]
As others have rightly said speak to a couple more companies and see what they have to say.
regards
Andy Davie
IVA.co.uk Spokesperson
About me:
http://www.iva.co.uk/andy_davie_profile.asp
IVA Helpline: 0800 197 4838
http://www.iva.co.uk/iva_helpline.asp