Almost anything is possible IF you have the right offering, and IF you can get it to the right customers. A friend, well, acquaintance of mine does high-end sound installations. One recent project was a £100k project putting high-end high AV systems into a client's new indoor
pool house. You don't want to know the the house AV system cost.
That was about contacts. I don't think I could have even got in front of the client for 5 minutes to pitch the idea. He could, And did. He also has more work available than time to do it, and so .... waiting list.
His USPs are, first, quality of work,, but second, both access and reputation. There are, as the saying goes, many ways to skin a cat.
Make no mistake, though, what you're proposing, unless you have some edge, is NOT going to be easy, as countless people have found out when they tried it.