Ure first time doin its gonna suck, and will def take a chunk of time outta ure week... Its not a hard thing to do... I just finished mine, and took me about 20 hours to do (4 days or so)... U learn a hell of a lot of info doin it and save ureself the $1000 it would cost to bring it to a shop... As long as u know the basics to ure engine, can read a Chiltons, and have a lot of free time, I say go for it...
:thumbsup