There is no wheelchair for rent here. Plus, this is not a mall (I'm not sure why it is labelled as one tho), but it is an area where you can shop for souvenirs and food. Palio is more like an 'small town' of buildings with Italian design.

Had quite a good Italian lunch at The Witches Brew.

It’s a commercial area that any visitor can enter. Like a shopping mall.

10am but don't go too early, after lunch time would be good & weekends would be best as there's lots more happening

No entrance fee though if you take your own car and park inside they charge you 20 THB but there is parking outside

Where is your starting point? If you are coming from Bangkok, the easiest way is to join a tour for convenience. If you coming by train, there are 12 trains departing daily for Pak Chong. From the railway station, bargain beforehand with the cab driver for a tour toPalio Khao Yai and various places of interest. There are now a handful of blue or green vested motorbike taxis available, usually found hanging around the town centre. Fares anywhere within the city centre on Mittraphap Rd should cost no more than 50B, while the outlying area will generally run 100-150B depending on how far you're going. Double that for a round trip. Motorbike taxis may be willing to be hired for a day of exploring the farms and countryside for anywhere from 300 to 800B depending on your bargaining skills. If you can swing it, the best way to explore the area is to rent your own wheels. Motorbike rental in Pak Chong starts at 300B per day. I hope this helps.