how much overhang is too much

G'day all, I've got a pc220-5 digger and currently dont have a way to move it around, it was delivered to us on a hyd widening $100k float and Im not sure I can quite justify spending that sort of coin on a trailer for an old farm excavator. Given the pc220-5 is 2.98 with meters wide with .6m wide track pads and most standard drop decks or floats a 2.5m wide is there enough track on the deck to keep it there with the normal amount of chains and binders? Or do we need to extend the trailer's width a little?

Any advice appreciated



Steve