New canopy campers should have the wiring harness already extended to the driver’s side to accommodate a fireplace on the passenger side. If it’s an older model with wires on the passenger, you will need 10 AWG to extend the solar + and - (14 AWG for all other loads).
813 Fabrication has a really nice set of aluminum brackets that are slotted for easy adjustments. Also, 100% recommend his aluminum panels over Goose Gear's wood panels. Waaaaaaaay better fitment and looks awesome. I paid $60 to a local metal fabricator to cut holes for electrical.
813 Fabrication makes really nice products. If you have factory rails in the bed of your Tacoma, this may work (even though it says it's for Jeep Gladiator): https://www.813fabrication.com/product-page/arb-twin-compressor-mount-for-jeep-gladiator