None of what you're saying is relevant to my point. You can lift the entire frame, using a regular 4 point auto lift, and drop it onto the battery pack slightly elevated off the ground. If you don't have that, a couple of pallet jacks to roll the pack under the car, I mean come on! Where's your creativity?
There are differences between ICE cars and EVs, most importantly tremendous power from zero RPM, & zero CO2 from the vehicle. Why would you think different tech should be equivalent? 🤦