[neniajany]

...A]. from someone that lives in the USA, that has gone to Japan,

B] some tips on where to stay,

C] how to set up things to do (tours, hikes, bikes, dojo to see, temples etc)

D].....and roughly how much spending money that I should bring along with me?

Just a few points;

A] - - surely you mean 'has been' to Japan.

B] - - Answer will depend upon the region/city [cities..?] you will visit.

C] - - See above point ; - + are you travelling alone? in a group? with parents?.......need I continue?

D] - - How long is a piece of string?

Before you provide all of the missing material.... I will not be supplying any answers. Others might....