AM14U3 chassis with mecanum wheels?

[adamdb]

There are some threads from a couple of years ago about using mecanum wheels with a KoP chassis, but was hoping for some updates from someone that has done it more recently with the AM14U3 chassis. 6" or 8" mecanums? What gearboxes? What modifications did you have to make to the chassis/gearbox/wheels to get it to work? Will the Toughbox Nano/Mini/Micro bolt in with/without modifications to the chassis? Does the AM14U3 have the relevant holes to be used with any of these?

Basically, what pieces/parts did you use and how much modification was required?

Thanks!