Unless it has changed after the storm, there is a circle at the exit of the pier with signs saying Maho or Orient and others. You would get in the “Maho” line. There were many Econoline full size fans that easily take 8. There are also many Toyota vans, bigger than a Sienna here at home, that crammed 8. Shouldnt be a problem. Worst case two smaller cabs. Tell them when you want to be back to the ship and they should offer to bring you back. We did a Maho/Mullet beach roundtrip and didnt pay til the return at the end but it was a long afternoon not a whole day.

They will take US dollars.

Do the cabs on SXM take credit cards anybody?