Remortgaging - self employed

I'm in my second year of self employment although I only have one tax year under my belt so far. We are looking to remortgage and wondering if we are likely to be accepted based on our details, our annual joint income is £31000, the mortgage is currently ay 75k, we would like to increase to 85k, the value of the house is £120k. I have a fair credit score with a couple of defaults that are 2-3 yrs old and my husband has an excellent credit score with no defaults. I fear we are not in good standing based on the above but would appreciate some advice as to where best we should try.

Thanks
CB