Nice looking bike, congratulations.
Am a new 500 CE owner as well. Mine is a 2011 that sat since 2017. I know you said the tires looked new, so did mine, with only 1308 miles on them. But look closely, if those are 2017 tires you might need to replace them too. Mine had lots of tiny cracks near the rims. I replaced them with knobbies since I ride dirt roads a lot.
We went opposite directions. I am adding hard luggage to mine. My other bike is a 2014 Harley Ultra Classic (all black like your bike) and I have gotten so used to the convenience of the saddle bags, for everything. Camping, errands, you name it, so I am adding them. Just can't do much without them.
Good luck, and look it over close.