Great.Good move on the crash-readiness. I'm making sure my handlebar switchblocks come with molex or the like. Hey - I have changed my battery now so that I can has quick-swap batteries! Not that I can afford one battery, let alone two... but anyway, it's future proof
I've found some cieling winches on Ebay that I can build into the gantry and modify for 3 second lift.
65kg is about as much as I can lift but future packs will be heavier.