Hello and welcome to the site. Congrats on one fine purchase. I too have a 2012 Roadster with 70,000 kms on it. Great bike.
Some questions.
1. How many kilometers are on the bike?
2. Did the previous owner outline what he did when he performed the comprehensive service in 2019? The owners manual should have been filled in if done by a dealer.
3. How was the bike stored, especially during the .... winter... brrr... heated garage, outside, under a tarp etc etc? Also, was it parked for extended period in the sun (kills the sidewalls on your tires)? Was the fuel tank kept full during the winter or drained?
4. When was the bike last run?
5. Do you have a copy of the owners service manual which lists when fluids and adjustments/checks should be made?
6. Is the bike stock, if not what has been done to it?
Just trying to get a feel for the condition of the bike. Knowing what the mileage is will determine how many of the recommendations the fellows proposed need to be done right away or at a later date.
I would take the time to check and tighten all the fasteners and wiring connectors. What comes typically loose for my ride are the exhaust header nuts, rad shroud bolts, primary coil wire bayonet connectors (can cause misfiring when loose), foot pegs attached to crash bars (if equipped).