Hi Ledlt and welcome to the forum
1 Generally the sale proceeds will be captured under the terms of the IVA. You may be allowed to keep some relocation costs, but would need to discuss this with your IP.
2 No problem in living abroad, so long as you maintain repayments. I have several clients living abroad at present, and you are only an e-mail away!
3 You may also have to pay statutory interest on top, which is caluculated at the rate of 8% per annum. This is a usual modification which is submitted by creditors.
Regards, Melanie Giles, Insolvency Practitioner for over 20 years.
View my IVA blog at:
http://melaniegiles.blogs.iva.co.uk