Get a professional engineer to look at your plans. Regardless of materials, if you plan to do a custom design you would do well to speak to an engineer.
Many kit home manufacturers use a similar system for "contstruction," however their designs meet at least one building code. Up front, your "bolt" spacing is of concern to me--a PE can help you with that.
At 7500, you might find that a kit home manufacturer can get you a "shell" for around that price.
However, I would advise against a kit home.
At 7500, you could probably srounge enough logs to build a small cabin....one that will last more than a life time.
-Andrew




I don't know if this is the right forum but I have a crazy idea I would like anyone to comment on. I'm thinking of buying 2"x8" red cedar lumber with various lengths and stacking 64 courses of them on top of each other and using threaded rod vertically every 4 feet or so and bolt them down to strengthen them, then gluing and insulating them in order to build a 20' x 24' cabin. The retail price for the outside walls is around $7500. I think its a very cost effective plan but I am unsure of the load bearing capabilities of the 1/2 story above. Any straight forward help or constructive critisism comments will be welcome. Thanks!