I'm not in Washington, but in Colorado. I have a spare large gear on hand not being used. It was part of the extruder I received with my MakerFarm kit. I have since printed out new extruder parts, and am using them, so I can send you this one if you wish.
MakerFarm 8" Prusa i3v
RAMPS 1.4
0.4mm E3D v6 for 1.75mm