those will help. it shouldnt take long for you to put them in. no more then 4 hours. remember to bolt the uppers in first tho. i did it ass backwards my first time, and on went the lowers. your best bet would be to get a punch, or long screwdriver to try to line your bolt holes up. use a jack to help with that too. you'll figure it out.
good luck.
ps. you might need a hammer to get the uppers to line up.