[The Flintstones]

I want to build and install the folding table that opens infront of the couch on a '70 Overlander as mine is missing. Do any of yall have plans or pics or experience. I'm not sure how to mount to the wall under street side window and I have searched and found some good photo's but cannot tell how to mount there. It also seems there is a wooden shelf/ledge that it would fold under when not in use. I would also be willing to buy one. I'm guessing "L" brackets rivited to the wall? Also what type of wood would be used that is not too heavy, Pine?
Thanks for any information.
James