What type of offroading do you do? Are you concerned about how it rides on pavement? Most likely, people will recommend the lift that they bought. And what's good for one person may be overkill for someone else.
I've never installed a long arm kit, but I've installed 2 Full Traction 3" lifts and one 3" BDS lift and they can be done by yourself with some basic tools. Figure 8 hours for the install by yourself. Having help will make it a little faster.
Here's a discussion that may be of interest...
http://jkowners.com/forum/showthread.php?t=1202&highlight=lift
I've never installed a long arm kit, but I've installed 2 Full Traction 3" lifts and one 3" BDS lift and they can be done by yourself with some basic tools. Figure 8 hours for the install by yourself. Having help will make it a little faster.
Here's a discussion that may be of interest...
http://jkowners.com/forum/showthread.php?t=1202&highlight=lift