Boy, it that a wide open question and one with a lot of code issues involved also. If you are in a location where you can work reasonably with your local building inspectors, the people who are supposed to know and enforce the building codes, you might start there.
If you are in a place where the codes are enforced more with $50 handshakes than actually followed, come back with a lot more info. What you would get for your $7-10k would be a start. How much sweat equity you can provide and DIY experience you have would help too. Henry in MI