Thank you Brian and Bob for your replies.
Brian while I understand that your suggestion is very practical and will work I think perhaps Bob is correct in that I'm being too adventurous. I was trying to adhere closely, probably too closely,to the scale. More importantly, being a stereo typical Scot, I was trying to use material I already have procured by some means or other!
Bob thank you for these excellent photographs and I will make them using the materials you suggest. I have already made the pulpit and pushpit from 2 mm brass rod.
Thanks again very much indeed guys
Ian