There are a lot of different choices for machinist tables that will work for you.... But.... the most important part is the precision vice you bolt to the table. I bought an older Kurt vise for my 18" vertical mill. I added some steel plates for extensions to diversify its use for different types of riiser milling. Its important to keep your riser in the same direction when milling your location pins. None of this flipping it around non sense.
For that reason i mounted my vise closer to the end of the table. It gives me clearance for milling RC limbs too this way.
Here's a few pictures.....
https://photos.app.goo.gl/z84TsgYHh8drZFCJ6BTW.... Using a Machinist table on decent drill press for milling limb pads and drilling should be fine for bows. Just be conscious of your RPM levels with different types of material, use good sharp mill ends or router bits, and don't try and hog to much off at a time. Using a drill chuck you do not want to use high rpms. A milling machine has collets for high speed milling.