Hi Adam,
you can use a sat, but this way you have extra hardware, wiring, connections, and the receiver connected to the power bus of the servos can suffer from servo shenanigans like back voltage or voltage drops in power surges.
To convert a NEO, make sure it's a V2 (check the serial no., > approx. 20007600 and an addendum (no VLink) to the device type in your device list indicate that, as well as the connectors you can see on the main board, through the semi-transparent plastic.
Then, purchase the VLink Crossgrade from the App Store to enable the receiver, and add antenna wires, I would recommend the set 05062 wich includes a new case and labels, in case you accidentally break the closing tabs for example, upon opening the old case.
Kind regards
Eddi
Born to fly ...
forced to work.