> Most people's hardest task was mounting the motor to their transmission, because it often meant a custom designed, and custom machined mounting plate.
Canadian Electric Vehicles makes transmission adapters for a surprisingly large number of vehicles [1]. They come with adapters to attach a typical electric motor (1 1/8" keyed shaft) to the stock flywheel. So, that part at least is easy for quite a few cars (though could probably be done cheaper by someone with the right tools).
You're still pretty much on your own when it comes to mounting the motor/transmission to the car frame, but that's generally an easier problem that doesn't require as much precision.
Canadian Electric Vehicles makes transmission adapters for a surprisingly large number of vehicles [1]. They come with adapters to attach a typical electric motor (1 1/8" keyed shaft) to the stock flywheel. So, that part at least is easy for quite a few cars (though could probably be done cheaper by someone with the right tools).
You're still pretty much on your own when it comes to mounting the motor/transmission to the car frame, but that's generally an easier problem that doesn't require as much precision.
[1] https://canev.com/product-category/motor-adapters/