Yes, it's not that bad just take it slow. The trans skid is the hardest as it is difficult to get a wrench on the bolts. a swivel head ratchet wrench is the key for the trans skid. (16mm)
Remember this picture
http://project-jk.com/jeep-jk-write-ups/evo-mfg-protek-skid-system-for-2012-jk