Off topic here, but I just wanted to tell you I was checking out your website and noticed the long hose you have attached to your bottling bucket. Do what I learned from here and just cut about an inch and a half of tubing to connect the bottling wand to the spout and just lift the beers up over it. It's hands down the best advice I got from here.
As far as the business plan goes, I haven't written one for a brewery, but what I've done is look for a similar business and reference their plan. They can be hard to find, but they are out there. Start looking for one that's local if you can. The best website for helping me write my plan was sba.gov. Here's the outline: