Regarding the building board, I do plan to make a frame to support it level then place it on cabinet top. Another layer on top would be a good pin material. I have some foam I will try and if no good will go with sheetrock. My shop is 30x40x12 with outside concrete slabs front and back. AC for the shop is not doable unless I partition off a smaller area. I like the idea of the ice bucket cooler. Cool air blowing on you would be good. I did make and have a 12 volt cooler that I made for the plane. I will have to check it in the shop. The bucket style may be better.

Working in the heat is not too much of a problem for me. I have adjusted to it. I am outside working for most of my day. How heat affects model building and supplies is my concern. I did not give thought to paints, glues and other needed material. Thanks for the tip. I do have a small refrigerator that I wii use. I also have a small microwave that I use to recondition old tape I have in the shop. I will have to check things as a progress into this hobby.

Thanks for the replies.