Not a bad idea. May I suggest a compromise for you.....
Why not fit industrial castors on them. Might not last forever, but replacements generally available at DIY stores in most big towns.
Would that make taxying a little easier ?
A very good idea. Even more so seeing how B&Q is just outside AWs main gate.
It'll even look like the good old Wasp. (May as well do seeing how most of the cab is from the 60's anyway).