Dua after buying new bike

Regular bikes of any size, with or without wheels, are not considered folding bikes, and may not be stored as folding bikes aboard trains. You must fold up your folding bicycle before boarding the train. You may store the bike only in luggage storage areas at the end of the car (or, in Superliners, on the lower level). The valves are in spec and a new heavy duty air filter and battery were installed. The bike also has Dunlop Geomax tires in great condition, Freshly serviced suspension from GTR, Renthal fat bars, Renthal Kevlar grips, new wheel bearings, OEM KTM plastics, and decal works graphics. Hi, I will buy a new Avenger in 2-3 days (my first bike on my name). Can you guys tell me what are the documents to get from the showroom like RC book, Ideally, I'd like to upgrade to the new 11-speed Shimano 105 5800 or Ultegra groupsets. I understand I'd need a new set of wheels to accomodate this as well. Which is a smarter move, to upgrade my current carbon frame or sell outright and just go buy new from my LBS? The bike is in mint condition and I have no idea what it would be worth on CL.