To the OP, in all honesty...build what you can...buy what you can't (but it doesn't really all have to be from ONE vendor).
If keeping short arms...
Even if you can't weld (which if you were up north I'd be more than willing to do)
You could buy the joints and tube size you desire...and then throw them together to make arms that are going to cost almost the same as buying from a vendor...but more than likely stronger (depending on what tube ya go with).
I.E: RE/Rustys/Ballistic/EVO/Summit Joints, 1.5" x .25" DOM, and some inserts and voila...killer arms
Coils: My vote is still Rock Krawler
Shocks: Bilstein or Fox
Track bar: Build your own (not much different than the arms just longer)
Leafs: Haven't bought nor really kept up with whos has been working better...either way get shackle boxes to make sure your leafs work correctly.
I like to support vendors who actively support us and the sport. If you decide to go Long Arms, or even shorts arms I turn you to FrankZ...you can't get much better customer service.
My $.02