Does anyone know if an unemployed teenager in the mid 1960's was paid National Assistance (dole money)?
If they did get paid, approx how much was it per week/month and how was it paid to them ? e.g. By Postal Order or straight into a bank or Post Office account.
Remove the batteries, if you don't and decide to go out in the rain - well, your choice.
If you leave them on and it rains unexpectedly - have some cling film ready.
Do a search on the forum... someone on here has changed the controller and lcd on a new (ex demo model I think) version to fit a throttle that came with a kit.
Use internal & external micrometer's to compare dimensions of Bafang motor shaft o/d and BB (inside & outside) to determine how much metal you have to deal with.
Then hire/buy/borrow a hand operated taper reamer to open up the bore in stages.