It would be a good idea to keep all those details. I do keep a record of what i pay how much i spend so if i ever have to sell i remember what they owe me.
I am not sure if I want to keep track of how much $$ I have spent on this hobby 
+1 to that
Wish i would have kept a more detail list when i brought mine.Doing it now as insurance want photo + S/N number and a valuation
from a reputable dealer.
