One contact you can also ask about typical import costs you should have anyway is Matt Meyers from Genus Logistics, import broker.
If you decide to ship stuff back it’ll be through JFK and it’s a good company to have working for you.
www.genuslogistics.com
I would suggest a ride to Harrisburg Pa, outdoor show in February. There are a fair number of Namibian outfits that’d fit your hunt wishlist and you should be able to put together a package as you have a very strait forward hunt to plan. I’m in the Hudson Valley of NY , but even from the ADK’s it’s not to bad of a drive.
I hunted with Jan Duplessis of Sebra Safaris in Namibia and he’d also be a good guy to contact. Good honest hunt on his own land, no high fence , unfenced ranch hunt,top notch food(best i’ve had in a dozen camps). Small outfit,one group at a time type place.