Thankyou for the tip clyons8. it sounds like an old trye inner would work well, it is already stretched.

I think I have more drive to make his part from wanting to know if I can do it now than from wanting the part.

Thank you for the comment on my build diary unfamilia, not much happens each week so it gets few updates. but I am glad you like it.
I wanted a good record of what I have done with as much usefull info for anyone else doing the same build.