Without mentioning any specific names, the only Mfg Screen paints that approach or equal the SF varieties cost upward or beyond $180.00 for 64 oz.
Some even more.
To that end, DIY'ers on this Forum are encouraged to give what we suggest a try, because with any degree of care, the only worrisome part...mixing up the Colorant...will produce a mix that is close enough that if there is a resulting "push" due a preponderance of too much Blue or Green or Red, and IF
the DIY'er posts his results and asks for a corrective solution, when that Colorant is mixed into the Reflective / Viscosity bases (...which BTW are really quite simple to mix...) any undue color shift from neutral Gray is easily corrected with the specific diluted R-G-B elements required to effect such.
For sure, some want spectacular results (...especially "ambient light performance-like" results...) to be available in a "One Can Solution". But just as certain is that there are no "Over The Counter" paints that can provide such, and the Mfg Screen paints will...and are going to make you pay though the Nose. Or from the Hip at least, where your wallet resides.
So in the end it boils down to how much effort toward a true, much less expensive DIY solution you can, or are willing to make. In the real world, one can usually spend their way into where they want to be...but if you can't afford Popcorn & beer afterward, where's the joy in that?