I'm looking forward to reading your post. I take it you're still writing it.
Cudos to you for completing it in 2 to 3 hours with your little helper. Mine took me 7 to 8 hours total as I recall. Here's the link to my Diff & E-Locker breather mod:
E-Locker and Differential Breather install, Trail Edition
I had to build mine all by myself. My grandkids live too far away. Wish they lived closer...
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2015 T4R Trail Edition w/KDSS. Baja Rack flat utility rack, Baja Rack ladder, WeatherTech floor mats, Demello rock sliders. RCI skid plates, Falken AT3W LT285/70R17 tires, ICON Stage 7 tubular 2" extended travel lift, ICON Rebound 17x8.5" 0 offset alloy wheels, Baxter Performance remote oil filter adapter. Side exit exhaust, 2nd recovery hook on rear frame corner, DIY wheel well liners with 1/4" neoprene rubber.