If you know what you want you can get items shipped to the local UPS/Fedex locations from anywhere in the US (UPS Stores are likes fleas over in the US, warning they are shops and not big depots like the UK) and marked hold at location.
All you need to do then is pick the item up from the store and bingo.
Got a Lowrance Airmap 2000C with international database for under £400 that way.
Remember to declare all to customs
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