Hard to tell from my lack of activity here, but great progress has been made. The studio is now insulated, batons nailed in place and now the ceiling is going up. The walls have been patched, sanded and painted too. It was starting to look very very schmick until over 100mm of rain this past weekend revealed we still have a few leaks to fix, both top and bottom.
Many thanks to Bap and Zippi&Zoe for the hard labour.