Thats something I am working on myself with my new place. It came with lots of buildings and a nice barn, but winter here is a pain too. I am not big into spending tons of money, and I dont want to pay contractor prices either. The next thing is financing. I didnt want to pull a loan for it as well. So I have been going along a peice at a time. I found the most expensive part, was the trusses. Eveything else didnt need a huge amount spent all at once. I am working on putting up my 90x150, and the hugest expense so far has been the trusses, at $8400. Now I still have to put them up. In the mean time they are sitting under tarp as I get the poles put in place. I planned out to get the support poles put up, trusses on, and roofing. The next step will be the walls and footing along with the little things, like the doors, windows and so on. I understand where you are coming from with cost... Wow, there are some pricing options out there!
Dixon's Red Hot Ember