I'm wiring a distribution block from my trim pumps (3 - tabs and outdrive) and would like to know what gauge wire to use from the pumps to the dist block? And what guage wire should I use from starter to dist block? Where do you guys get your wire from?

What is the total combined amperage the pumps are rated at?

I ran 10 gauge to the pumps the three wires, and I ran a 4 gauge for the main.

^^^ yep. On my drive trim pump and bennett pumps there is 10 agw wire in my Baja.