Many thanks, glad a couple of you like it.
To smooth the siphon I gave it a light sand, then used 2 layers of spray putty, sanding with 400 grade wet dry in between coats. After that I put on a coat primer filler, sand then the black colour. With the seed trays I found that pack 4 has a 3 rib tray for bottom set (picture pulled from my PO application, thanks Bigwam)
Since the last update I have managed to build the corrugated section on the left side of the top tray. Was made from 30mm PVC pipe, same size I used for the lab pipe
I also made my straps out of 50mm nylon strapping with size adjusters on both sides of the clip connector.
Even put some clear plastic in the dial face of the sonix to simulate the lens
Then fix the top tray in place and it was complete
Then after a little weathering