A nice quiet hotel in a safe area

In the next month or so, I plan on going to KC on a much deserved vacation. I am mainly going to see the WW1 museum, but also plan on seeing the Currency museum next door and the Steamboat Arabia museum. I also want to make it over to the Truman Library and maybe Lone Jack Cemetery and Museum if I get a chance. I was told there was another history museum near the Truman museum, but I forgot its name. Also, is the Lone Jack Battlefield still in existence?

Anyway, I was just looking for a few recommendations on hotels. I am not looking for anything fancy, just a nice place in a safe area. Also, any good places to eat. I like BBQ, pizza, and burgers.