craig, what I ve seen people do and what I did 15 years ago was to build a plywood box 2 ft square and 7 ft tall, with a door of course, and I put a porcelain light fixture with a 75 watt bulb and a very small fan, just enough to move the air and heat arround, also install a termometer, I insulated mine with half inch foil backed eps foam. I havn t worked a piece of wood in 14 years, last week I opened the box up for the first time since then and found 3 un finished bows, two of them backed with deer rawhide. maybe someone with more experiance will give you a better answer...