If you're offering shipping in the US, will you be able to send it to Guam? It is a territory of the US and USPS domestic rates apply, even flat rates. I have to ask because many think just because Guam out in the Pacific that postage is more or that its a foreign country and international rates apply.
That should be fine. I know its part of the U.S. territory so I see no problem with it. if they charge me extra which they shouldn't I'll deal with it so no worries