Carson City, NV but sac only about a 3 hour drive for me.
Do you have a local installer? I'm sure there are places in NV to do gears. Although I dove up to RC, (3 hours away) but you'll be paying CA Sales tax which is 8.25%-9.75%.
You'll either have to go with Superior, Yukon or Alloy USA. I think they're the only ones who makes 4.88:1's. You will need a high-pinion gear set for the Dana 30 up front and a standard set for the Dana 35C. You will also need two Master install kits. Make sure they come with new carrier bearings, some install kits don't come with them. I'd also make sure they're Timken bearings.