Thought i would share this, going out today to put it to the test.
It's the original fone handle, i have a blow torch and melted the screw hole tabs so they are straight with the diagonal ends. I have some aluminium strip about 3mm thick, bent it round the existing handle then used self amalgamation tape to wrap around to hold both together. The tape is waterproof and super stretchy. The handle is very strong too.