Yes, a common person can install a barrel, it's even healthy to do so. Noveske rocks, I envy you for being able to afford one. In reality, any properly manufactured bolt should work with any properly manufactured barrel, so if you already have a bolt, dont bother with the matched bolt. But if you don't have a bolt already then get the matched bolt. It's a bargain for the quality you are getting. Also, if you don't plan on installing a FSB and decide to go with a middy length barrel and full langth handguards then don't worry about barrel install at all, its hard to mess up. Just slip the barrel in (having first cleaned and lubes the peices nicely) then maske sure the little prong on the barrel fits nicely into the reciever's notch, lube the threads, install the barrel nut and VOILA!
Hope that helped.