Decided to build the interior of the church too and have a removable roof. It's going to be a tonne more work, but a hell of a lot of fun. I've just finished modelling the raised floor for the alter, using some DAS modelling clay. First time use of it as well. I'm now currently working out how to make a balsa wood roof frame, I've not had to use Pythagoras since high school! Will post some pictures later of progress.