Hi Adam,thanks for the kind words
it`s ok mate my trolley "is no more",i decided after all my thought and effort went into it to dismantle it
and sell trolley and reel,i use a van mounted system as i have no need to use a trolley anymore,but if i ever do i have got a few new ideas but that may be a long time coming,
what i did was put a length of wood across the bottom of the frame that is above the wheel bar and drilled holes in the wood and then fastened a couple of cable ties through the holes then round the trolley frame,and that is where the battery box sat and to fix the box i just screwed it through the bottom into the wood,
post some pics when you`ve finished it,Gaz