I'm not an expert in corporate protection or insurance, but it's my understanding that LLC effectiveness in terms of shielding your personal assets varies by state. I would not rely on it alone. E&O is expensive for someone doing very few inspections, so I think you either need to bite the bullet and go for it, by spending more money on insurance and marketing (like a good website, for one), or maybe decide this isn't for you. Don't let your investment of time and money spent so far get you into something you're going to regret.
This isn't any easy way to make a living. You are going to have to enjoy it to be successful.
My two cents.