I need to improve the lighting since I'm just using clamp-on 120 VAC floodlights.

I got a bunch of 12 VAC pendant cable lights like these. Brilliant Lighting cable lights.

and I need to figure out how to get them wired up.

They use a GIANT 120 VAC to 12 VAC transformer and some impressive cables in their original form.

i think I'll rewire them for hard-wired 12 VAC, but I've got to figure out how heavy a wire to use.

These are 12 VAC 50 Watt bulbs, so P/(I*E) = 50/12 = more than 4 Amps each.

I'll have to look at cables and see what I can come up with.