I'm not answering your questions, but I like my current Rad precisely because it looks like a bike slapped together with after-market parts. If anything breaks and I can't get a replacement, I plan to buy parts from 3rd party vendors.
After 5-10 years or when I can no longer get parts, I think it is time to retire the bike. I don't like to think like that but that is the way the world is, nothing works forever and bike technology, especially ebike technology, changes so fast. However, considering everything in that old bike seems modular, I find it hard to believe that parts, or 3rd party parts, will no longer be available in 10 years.
After 5-10 years or when I can no longer get parts, I think it is time to retire the bike. I don't like to think like that but that is the way the world is, nothing works forever and bike technology, especially ebike technology, changes so fast. However, considering everything in that old bike seems modular, I find it hard to believe that parts, or 3rd party parts, will no longer be available in 10 years.