I don't want to talk you out of FtW Cabins, but I agree with others. I have an
ECV and stayed at a handicap Cabin last year. The handicap Cabins are mostly all on the 2800 Loop, very close to the front of the resort. That Loop has 70 Cabins. First you have to exit your cabin, walk to the Loop Road exit, to get to the bus stop. After a rain, the road will have puddles. You'll get on an Internal FtW bus that only takes you to the Outpost Depot where you grab a park bus, or the Settlement Depot where you get the boat to MK. So there's transfers involved in your park visits & etc. The Cabin has only 1 bathroom but it has room to maneuver a WC. I believe you can get tub or roll-in shower. The Bedroom has one double and a bunk bed. The living room has a Murphy bed (double). Laundry is down by the quiet pool at the 2500 loop, so a bit of a walk (or bus). Regular Cabin is 504 sq.ft, Handicap cabin is 18" wider (for accessibility) and has ramp entry to outdoor deck. Pic below shows regular Cabin.
I think for similar money you might seriously consider Art of Animation Family Suites. They are new construction, interior corridors, about the size of 2 Value rooms put together, so they have 2 bathrooms, plus a small kitchenette. The sleeping arrangements would be Queen bed in 1 room, sofa-bed (double), and "Magic" Murphy bed (double), which is the dining table when bed is folded up. 565 sq.ft. Bus service would be easier than FtW Cabins, as you only need to take a park bus (no internal bus). Plus there's a food court and gift shop without requiring transportation. Pic below shows regular Family Suite.
The All Star Music resort has 192 Family Suites. These are actual conversions from 2 Value rooms. Entry is outside. One "former" room has a Queen bed, kitchenette and bathroom. The other "former" room has a sofa-bed (double), chair-bed (single) and bathroom, plus small table & 2 chairs. ASMu Family Suites are priced less $ than AoA suites. 520 sq.ft. Bus service would be much easier than FtW Cabins, as you only need to take a park bus (no internal bus). Plus there's a food court and gift shop without requiring transportation.Pic below shows regular Family Suite.