The battery, screen and front camera each have separate iFixit guides. Its battery guide uses a cellular model and flags Wi-Fi antenna differences.
What to check before buying
Screen and camera
iFixit documents replacing the Air 4 display and front camera separately. The camera guide says complete screen removal is unnecessary for that procedure, which changes the work compared with a full panel replacement.
Battery variant
The battery guide uses A2324 cellular hardware. Wi-Fi Air 4 units can omit cellular antenna steps, so the photographed layout should be checked against the actual tablet before an estimate is made.