Last time i went which was 01 was about 4 g for the two of us. Do the all inclusive. You will need extra money if you want to do stuff off the property. We went on a helicopter tour of Ian Flemmings estate i think that was like 300/400ish for like 25 minutes, horseback riding on the beach was 150ish. Dunns river falls was cheap till all the vendors in the bizarre try to hit you up. Bring singles for the sky cap, taxi dude, etc…
I just booked a week all inclusive in cancun for me, wife, and kids for like 4,200 flying out of tonto.