i dont know why ure so afraid of installing those springs urself..
i, myself didnt knew one damn thing about suspension installed my springs a couple of years back..<with help of a friend>

well...expect to pay probably around 60-100 for installation..
depends on where ure at..
and for the best pricing...try www.groupbuycenter.com
u will not need a camberkit for that kinda drop...
alignment...well..thats up to u...