Just for your info, don't expect too much. Those countries don't have anything of Jewish History or anything which you would pay $10 in the US to do or see. Unless you are willing to wander around in the rural areas in the east of those countries. Which is against the advice of the State department.
I just feel that in order to visit every country in the world, it would be more practical to do those countries now, when I am in a good shape health wise. Burech hashem, hopefully till my 120.
It's hard for me to see myself being 60 years old and do the road trip there. However, I can see myself doing the more modern and touristic countries at that age, together iy"h with my DW.
I did the road trip from Bissau to Ziguinchor, than to Banjul.
Officially I am trying to keep my traveling to just 3-4 weeks a year.