There is an element of humor in designing a turbo system for public consumption.

Here are the basics needed to run modest boost safely. Often the response is: Nope, I want something more basic, simpler yet, and more boost to boot.

Here are the basics needed to run reasonable boost safely. Nope, I want to be able to run gobs of boost and the install time must be under one hour.

Here are the basics needed to run high boost safely. Nope, I must have something that out powers everything and costs little plus jumps out of the shipping box and right onto the motor and cannot inconvience me for more than maybe a one hour install.

Don't know if the point gets across, but it must be understood somehow /somewhere/someday that forced induction requires some understanding, some engineering, some craftsmanship and a reasonable effort on the part of the owner in order to enjoy the enormous performance capabilities of the turbo Miata in a safe and durable manner.

The simplistic idea of "Let's buy the cheapest system, the one with the least engineering, the quickest install, let's opt for the poorest engine management, who cares if parts need replacing every six months" ........... is not the path to performance, durability, and above all...... fun.

I'd urge you undertake building your own system. Study the problems, study the solutions, study the hardware required for various levels of performance. Pick your performance, build to suit and keep a good margin of safety.