Devonshire Dumpling

Hi there, just wondering if any one had any suggestions or info regarding UK mortgage lenders that are likely to lend to a UK citizen who has been living in Aus for the past 7 years. My partner and I are returning to the UK for good in 2018 and would like to purchase a property before we return so it’s ready to go when we arrive. We would be seeking a residential mortgage as opposed to buy to let as we would be living in the property. Just looking to see if anyone has been in a similar situation and whether they have any tips or advice as to mortgage lenders etc. thanks all ?