freight forwarding shipping service for large heavy items to HI?

for some reason I can't find any sized 24 x 14 LG wall acs to replace current ones I have (maui) Online home depot sells the ones I want but it says we don't ship this item to HI. I thought I saw that if you go to Home depot they can special order it and ship to store but they said if it says online can't ship to hawaii then we can;t order it.

Does anyone know of somewhere i can buy these online and get them added to a pallet shipped to HI by some freight forwarder ship heavy item to HI service? I'm going to the mainland and get several bags free but not if I can even check them as they have refrigerant or even trust baggage handlers. shipping through ups is almost 400 ea. looking at other options