Maybe it would be best for us to go out to see you on the 23rd to visit the grave site and have lunch closer to where you are.
That will be easier than for you to come out to Tokyo.
We would be fine with that idea if that is good with you.
たぶん23日にお墓にお参りして昼食をそちらの近所で取るのが一番良いのではと思います。
その方がわざわざ東京に出て来られるより楽でしょうし、
私たちもあなたに都合が良ければそれで大丈夫ですよ。