Made a little more progress. I re assembled the speed controller and rebuilt it exactly as it came apart, put everything back together as per the pictures and notes I had made and was confident it would be silky smooth now it was all cleaned up. Switched the master on and it promptly burst into life without me touching anything

Luckily, I had it on a jack, just in case. At least it didn't shoot off across the workshop. Spent the next few hours trying to figure out what I had done wrong. Eventually tracked the fault to one of the brass bolts for the full power setting. They bolt through using insulation washers to prevent a short. I had not taken enough care when fitting it, and it was just able to make a contact to earth, meaning the cart just wanted to go! Having sorted that out I stuck the handlebar on and went for a trundle...Lovely!

All seems to work nicely.
I have managed to salvage the original key lock that stops the master switch being operated when locked. The key had snapped off in it. After some jiggerypoker with it, managed to get the broken part out and got the local locksmith to make me a copy that has worked! This has meant I can do away with the battery cutoff switch that was in there to immobilise it previously. I will remanufacture the front panel at some point to get rid of the holes. It is finished in a plastic texture, hopefully it is possible to purchase a sheet already textured.
The next step is to clean up and paint then reassemble the bulkhead panel work, refit the dash and wire it up. Then comes the fibreglass

. There is a fair amount of damage to put right.
Am hoping to get it over to the RUM show, but it wont be finished. It will be interesting to compare it to Jeans blue one.
Some more pics:







