Welcome to BFC fuelboat!!!!!!
You didn't beat around the bush on your first CRK. Gorgeous Unique you chose.
As far as a sharpening system, get what your budget allows, learn to get good with what you have, after all, you're retired now. It's not like you have to go to work

. Then, if you want to upgrade you'll have a good idea on what you want next for a sharpening system and you won't spend money unnecessarily.
I would suggest that whatever system you choose, use a sharpie to make sure you're following the factory edge.
I've learned over the years to free hand decently and still use a sharpie to check myself.
Personally, I use both the lansky and KME system, they're good enough for the degree of sharpness I am happy with.