That’s me- well actually I can walk pretty far- a mile or two or sometimes even further in a day. I’ve tried everything to minimize my walking there, including Uber, Minnie Van (RIP) and Club Level FP- but in the end I still wind up with an ECV at some point in the trip. I’m glad that your aunt will have one from the start.
I felt nervous about this the first time, but yes, people do this everywhere at WDW.
I rent the smaller ones so they are easy to dismantle and put in the car trunk. I would highly recommend renting a big enough SUV/van to handle all of your gear. ECVs on Disney transportation is just painful for everyone. You have enough on your hands without taking the bus. We also used Uber XL with no problem.
Spend the money it takes to make transportation as easy as possible. I’m glad you’re at BWV- that really helps.
Also, flip down the seatback if it’s left outside in the sun unless your Auntie wants a really toasty tushie.
I agree with others that canopies seem unnecessary but baskets are awesome. I think my family just likes me to get an EVC to carry their stuff.
This may have changed as I don’t ride KS anymore, but leave the ECV far away from it if she wants to go on that ride- don’t try to drop it off where the strollers are. A cast member patrols that area and they made us take mine on KS and we waited a very long time for the right ride vehicle that could accommodate an ECV.