I'm wondering what I might do for a mount bracket that doesn't require a metal fabricator.
Not sure if English is your first language... I'm a bit puzzled by your question in a couple different ways.
What do you mean by "Fabricator"? Are you referring to a person (someone that you would have to pay, who makes things), a machine (perhaps "welder" or "milling machine?"), or a process (building it from metal)?
A bracket is really the simplest possible thing to make out of metal. If you had a hammer, hacksaw and a hand drill you could make just about anything. I can't imagine the kinds of things you could make if you didn't have those most basic tools.
If you for some reason can't or just don't want to build it out of metal and want to use some other materials, that's pretty specific, so, I don't want to be overly prescriptive as to what your actual skills and abilities and tools are. You know what your skills are, so, use them to make a bracket.
Wood would be acceptable. Fiberglass. Perhaps rope and leather. I dunno, you could probably make anything work on a desert island situation.
I also can't imagine the situation where you know how to make things with one medium, but would be confused by a bracket. It's... just a bracket.
Maybe give us a little more explanation of the difficult part for you so we can help better.