I just did basically this. Bought a leftover 2016 F6B, had the dealer add the centerstand. I had to find a passenger backrest on Ebay and paid a LOT for it, but they are getting pretty rare.
Since I live in Texas I haven't looked into the heated grips yet... Definitely intend on adding them in the cooler weather. You can get there (minus the turn signals) for less than the $1,000 difference a Deluxe costs.
- Jeff