Go with springs. Spacers are beat for anything but mall crawling. I was in the same boat 3 years ago. wound up getting a 2" spring kit from pro comp thru Jc Whitney. I have brutally beat and mercilessly stretched that basically stock suspension and the springs are still good to go. Two times I've helped someone pop a rear spacer Puck and spring back in after they flexed a bit too much and the spring and Puck go flying ..... Can't say I trust a track bar drop bracket for heavy off-roading but OK till you find a adjustable one. If your gonna wheel hard, box in those stock control arms they'll survive longer.