I really like the T-47 (I mean, that model looks so cool on the table) I want it to be somewhat useful in Legion and we all know it is the worst performing unit the Rebel have access to. Add the fact it can be repaired with the new Droid and the latest overhang rule and you get a nearly unplayable model.
Here is a simple solution that could fix that movement issue for Repulsorlift vehicles only:
"If after a move, more than 50% of the model base overhang a piece of terrain, place the model on the nearest edge of said terrain in the same facing direction."
In some case that will boost the distance moved, but, since Repulsorlift have so many weaknesses, they really deserve that little boost.