My name is Adam, Don't have a J-body but love what ya'll do with these things.  I have a 1989 full size chevy p/u and am in the process of completeing a bag install.
Just helped a budy install Lambo doors this weekend and said that there were people that installed these Lambo Kits in two hours.  That may be true if you start with a torn down car.  Realisticly, I'd say maybe the better part of a day if you want it done right. Any way,   this is a cool site, buncha cool rides.  I know I have met some of ya'll before.  You'll know who I am once ya'll see the truck.  Good to be here.
click for pics -- work in progress
 
 
i agree, it does take a little longer than just the hour or two that some people claim.  take the time, do it right...