Who is going to review my plan, and what do you want them to do with it? You need to identify who is going to actually study your plan, and what they are going to do with it. If it's yourself, then it's a little easier to answer this question because the answer lies within you. If, however, you are writing your plan for others to review, and assuming you've answered #1 above, you're going to have to do some background analysis. Start listing names or titles/positions of people who you expect to review your plan. Then, for each person, brainstorm how you want that person to react to your business plan _ what they should do with it. You could do the same thing for investors _ do you know any business owners? Ask them what they would look for in any business venture they would invest, and specifically what they would look for if you wanted them to invest in your business.
I don't know of better way than to let your business give you what you want for your lifestyle. Whether it's a sample business plan for a small business or one where your business gives you a plan, it should tell you what is needed to take you where you want to go and when and how you can get there and it should be in clear simple terms, supported with all the specifics. So using a sample business plan for a small business is just one of many ways to make a business plan but frankly I think designing one that will have your business give you exactly what you want is by far the best way.