I would like to hire someone active in this forum with experience to help match all the components to upgrade my scooter...battery dimension is limited to roughly 444.5mm Long x 171.45mm Wide x 45.72mm Height, looking for more range, temperature option on display, not having to walk scooter home, etc. I want to replace the display, battery, controller, and the hub motor. It's a fat tire scooter and I've always had issues with the battery randomly powering off while riding, and the power will stay off until plugged into the charger (had to walk it home four different times). My guess is the battery has always been faulty (cells, bms, who knows) and will probably get worse over time. I will most likely need a custom built battery due to deck area, so that opens up a lot of questions and would prefer to consult with someone more experienced to help select compatible components.