With some friends kindly giving me their empty 330 ml Bear Cans last night I was able to put the angle parts in.

Next to do a conductivity check and if that looks ok to look at the VSWR value.
Assuming that looks ok and assuming I can see the Sun tomorrow I'll try pointing at the and see if I can get a signal.
I might initially try it with a 'naked' analogue signal path. If that is good I will try it back in the tin.