I think the un mil would be about right. A friend was talking to me about driving him and his lady there from POP, and I recommended Caribe tours and change buses there for the est coast. He emailed me saying that they'd paid 1/4 of the $200 USD I'd have had to charge to break even. That is why I recommended they go by bus.
yeh but sometimes a private car is well worth the expense....i have taken a car over public many times...of course it costs more....even paid for drinks....(back when)