Nice scratch build )) How are you going to make sun screens for thous? As I cold see from the photography they are not strate... I think it wold be easier to shape the form from tube and then insert the gauge (to fill the hole). And if you take flat styrene strip for base and make it thiner it will look more realistic.
By the way if you have dremel or power drill, you can use it as lathe machine and with knife make shapes as you pleased. That what I do for that kind of jobs.
Hope it will help and wonderful that you decided to scratch build instead of buying!
