I have to (rather, want to) draw up a device that I would eventually like to have built and sold.

The easy part is that said device is built using mostly off the shelf parts such as sanitary spools, tri-clamps, sight glasses, ball valves and some hvac fittings/nipples.

I'm curious if any of these parts exist in any design libbraries to make my life easier while attempting to draw this. I need ball valves ranging from 1/4" to 3/4" (including 3/8"), some SS elbows and Tees of the same size.

does anyone know if I can get these parts/sizes anywhere? I will probably need some continued help drawing this out.