Go for it! This is one of the mods on my list, I love open top wheelin. As for weight savings, I don't think it'll be much once you add the weight of the roll-cage and stuff.
Here's the link to the article:
http://www.4wheeloffroad.com/howto/56178/index.html
Here's the link to the article:
http://www.4wheeloffroad.com/howto/56178/index.html