What ever you do, make sure you call your insurer. One little thing goes wrong you lose everything. Good Luck
I have had people interested in paying and my current smoke house is 4'x5'x7' hoping to try to get some meat together to utilize the space. the money is a bonus to help fund my next build but I am not sure how to charge. Per piece or per lb? Usually I am making a few roasts or racks and waste alot of space but the flavor out of the house is much better than my little gas smoker.
What ever you do, make sure you call your insurer. One little thing goes wrong you lose everything. Good Luck