If you live in north of American, will you still do smoking in winter.
I am thinking to build a canvas tent, fire retardant, rain proof.
Built with high quanlity alluminum alloy pole, say diameter 33mm, wall thickness 1.5mm, alloy series of 6000 or 7000 which is for aeroplane.
The tent will be 6 feet wide, 8 feet long, 8 feet tall. The frame will be constructed by 12 pieces of alloy pole/pipe. Please find
http://www.ebay.com/itm/20x40-party...134891?hash=item43ef920c6b:g:fi4AAOSwn8FXR2PL as a reference.
I expect price around US$500. Will you need it.