Well Sniper, the little project is done. The homemade "dowel pins" were pressed in place and they hold the optic perfectly. I spoke with a machinist from work and he claimed our Alumablack stuff at work is old and no good so I simply squirted the adapter plate with a shot of flat black paint.
I am embarrassed to say this little project took me about five hours to measure/design/build, but not to worry, I won't be charging you 5 hours of labor... I enjoyed tinkering with it and got to further polish my small job machining skills.


(PM on the way)
"Dowel pins" are cut from #31 drill bit and pressed into plate
Screws are 5-40 thread and had to be ground to the proper length.
It all goes together nicely. Be careful not to over tighten the screws. I am still not too keen on the whole idea of dovetail mounting a red-dot on a pistol slide, but as you pointed out that is what the Burris designed for. I hope it works out for you long term.