Don't know the answer to your question about the wall. I'd guess it is included in the ticket price, but as I was a guest of someone else, did not order the ticket myself. Let me assure you that the park itself is a marvel and worth what you pay to enter.

It’s 700 B per person and to hire a golf buggy is an extra 350 B for the first hour and then 200 B thereafter (take your id for this option) or you can use the free bikes to get around. We did the bikes which was great fun :)

There is a few restaurants inside.

Naval Museum ฺฺBangplee floating market Rock Domain Climbing Gym BangPleeYaiKlang temple Jimmy kitchen thai cuisine school Asokaram temple ImperialWorld Samrong department store Mega Bangna Erawan elephant museum Bangpoo all of these is around 5-15km. from Muangboran (Ancient City)

350b per hour for a 4 person buggy.

yes you can....

The BTS line is being extended at the moment the nearest station is Samrong; later this year one can alight at a new bts station very near to the ancient city.

I’m not sure