I wouldn't waste money on buying new springs and torsion bars.  I'd run stock suspension, and maybe some rock sliders. Wouldn't waste time with doing ball joint spacers, cranking torsion bars, or diff drops.  Cause your gonna put unwanted stress on your front end.  I cranked up my torsion bars on my last rig, and as a result, I was replacing ball joints yearly.  My rig has stock suspension with 31's, and it does just fine, and torsion bars are in stock position.  And flexes decent.  Would flex better if I undid the sway bar, and had longer rear springs. 

Here is a picture of me out cutting firewood.


And the prior owners used to have a service body on it, so the rear springs have been worked over, even though they had a add a leaf on there. 

I would just rock what you got till you decide what you want, and save up for it.