How do I start to sell unique one of a kind products that are a little pricey?

I’ve searched through this subreddit for similar questions, but I think my question is unique.

I’m running an ad campaign and I have posted over 800 products unique one-of-a-kind products on Amazon. They are pretty pricy. The cheapest product I have is $150 up to $2000. I am wondering how would I get people to buy from a company that doesn’t have any ratings. Any suggestions?

There is definitely a market out there for the thing I am selling, but when I purchase things from Amazon I look at their rating and my store does not have any.