cracked bumper

i have 2 chipped out and cracked up spots on both my front and rear bumpers. how hard is it to repaint the whole bumper because they are both pretty jacked up, or is it worth it to just buy a new one at a junk yard? if i was going to fix it myself what supplies and equipment would i need? i have access to a compressor and paint sprayer.

hmmm depending on the crack maybe some bondo might do it. but painting it shouldnt be that hard. just a couple of coats then a clear coat would do it.