Making slow progress,finally finished off the mast and now working through the brass bits. Only gluing the brass sides that don't have portholes or windows to the woodwork. Ones 'with' will be painted first, then glazed from behind, only then these will then be glued in place.
When fitting one of these brass sides into a 'recess', I found that the part seemed a wee bit big, it would require filing on the bottom (or top) to make it 'flush; with the wood," Hmmm??" I thought of this, if you lightly score/groove the recess along it's length with a blade,( or a sharp pointed tool, say a scriber, maybe even a dart!) where the brass fits into the 'roof' or an 'upper deck', this should 'allow' the brass to slip into 'the groove', therefore you should be able to 'flush fit' the brass without any filing!! It's worked for me on the two parts that I have completed!.
Lastly, a wee tip for the mast when completed, seeing it's 'very fragile', rather than laying it down somewhere or leaving it 'on the job', I made a wee 'stand' for it, small block of wood, 3mm hole, and for the bit that goes into the brass tube a wooden meat skewer did the job!! Took all of 2 minutes to do and now the mast is safe, erect, and out of the way until it is required!....just a couple ot things to ponder on....Dave.