nothing really wrong with that bike that would prevent touring. most important thing
is........does it fit. if so, you can tour with it.

i checked goggle images.......didn't see any haro v4 xc's with a rear rack. you might
want to find out why. no rack mounts? or are the chainstays too short, such that
your feet would hit the saddlebags.

dump the suspension fork. get a standard fork, perhaps with low-rider eyelets and
mounts for fenders.

if you want to upgrade..............think wheels.

deore/lx/tektro is just fine. they're solid and dependable. you don't need the high end
racing gear like xtr....main difference being a few grams and a hundred bucks.

your bike shop will have clip on rear fenders.