No, no, no Bart, not worth the difference. Don't worry, I can take those 4.77s off your hands .
Seriously though for your Trooper's tire size its not really worth it. I struggled with this going to 4.56 from 4.30 for my 35s & its really wasn't enough difference for the time, effort & money. For VXs or an auto Trooper it makes more sense to swap a 5-speed & get the ~3.75 1st gear. As you know, I stumbled upon an ARB 12 bolt 3rd with 4.56 so I ended up deciding to regear while upgrading to lockers.
IMO, those gears are worth too much $$$ for the a small benefit you'll get in the Trooper. Nice work finding those...