Need Help With 6" lift

[Matt87chevy]

As the title says, i need help with a 6" lift kit for my 87 V10 Chevy. It currently has a 3" body lift with 33" tires. I want to put a 6" lift kit and hopefully fit 38" or 39.5" tires. I was wondering what else i would need to buy other than what the lift kit would provide, like transfer case lowering kit, dual steering stabilizers, and maybe some 3/4 or 1 ton axles. I don't really plan on doing alot of off-roading until i do upgrade the axles, but do you think the 1/2 ton axles would hold up decently on the road until i have enough money to upgrade? Thanks