Well I sorted it all out. Put a fuel filter before the remote needle valve.
And I bought a Dave Brown Six Shooter fuel pump off (insert auction website name here).
So fuelling is no longer a problem.
Also bought a GWS "Be Found" unit for the trainer. As well as a Hobbico Voltwatch 2.
Got the Be Found unit cause the guys were telling me the Canola crop gets pretty high and you can lose planes in it very easily.
Apparently the land owners header has eaten a few planes which were never found. Well never found until the header spewed forth a cloud of balsa and monokote.