If it locks up, you are gonna hate yourself. The repair is way worse if it's all locked up (see the thing about drilling the pin out, if it is done before lockup, there is no drilling).

I am not very mechanical, I did mine in 90 minutes and could do it again in an hour. IF you have a shop or local car guy you trust, print the instructions out and go get them to do it for you! Should cost you no more than two hours labor - maybe $200 max in most areas. A local car nut may only charge you a six pack of beer.