I just did mine on my 04 Viper its not that hard but you do need certain tools to do with. I have to recomend an air drill or something with a small head as you need to get very close to the side when you drill your holes through the frame. 2nd A torque wrench is important but you can't use it on several bolts. Once you have your seats out and the carpets removed I insulated the whole interior of the car.
I was shocked about the existing rollbars they were Al. tubing wraped in foam sad to say very misleading. I am planning to get the new bars wraped in foam and leather with either a velcro or zipper to install and remove. I also did Corsa Exhuast and Random Tech Cats and 6 point harnesses. I hope to have some parts back from the paint shop this week so I can get going again. Email me and I will send you a pic..
Canyon@hughes.net Good luck Support from all the above venders Were A+