Alvin,
if I read your post correctly, you already have plans to sell the pistols you have not yet received, as
You say "this year" and even If you store them longer the intent is to make profit?
You do know that buying and selling firearms for profit and with the intent to sell- not collect - requires a FFL, as you are acting as a "dealer in firearms".
I would not want you to run afoul of the Feds!