Good morning NickD,
As promised some photos of the parts I used to make my masts plus some of the tools used.I also have had success making parts out of pen bodies and tops as they come in all shapes and sizes.I’ve used the domed ends for tannoys, search lights, binicals, radar scopes on instrument panels, exhaust's, all sorts of things it’s surprising what can be utilised. Especially when the grandchildren have been drawing and have left dozens of felt tip pens etc over the years, so these have been raided quite a few times.
One tip I have found myself is when adding the very tiny webbings and flanges I have found it best not to try to get the size perfect straight away. Use a slightly bigger web glue in place then when set trim down to the correct size and shape required. I find it easier to handle a bigger piece that a 5mm x 2mm triangular shaped web.you maybe can manage but my eyes and sausage fingers can’t these days.
One thing I didn’t mention that I have found invaluable is supa glue accelerator, it just speeds up the setting time so you don’t have to hold the parts for as long.although it doesn’t stop you sticking your fingers to everything.
Hope this helps if I can help in anything else just ask.Good modelling. Roger.