Sure. Move the GZ to the driver's side since that's where the power-source from the van is (off the side of the driver's seat) AND that's where your fridge is. Then just use the 12VDC power cord that comes with the fridge directly into the GZ or pretty much straight off of a fuse-block (it has a built-in fuse, so fuse not technically necessary). Then don't bother with an outlet if you only want one - you'll have it directly in the GZ. Or just run one of these
Everything else is pretty low draw and not technically difficult. Put your fuse block on that same driver's side. Run #10 good-quality speaker-wire
or SOOW (depending how you want to route it) for the 12VDC outlets in case you pull some power (though #10 isn't enough to run the fridge on a long run - too much voltage drop).
Puck lights, #14
or even #16 or #18
pairs are fine - low power per puck. Pull them back and tie them to each other then into a controller. I like these controllers
- you can run multiple controllers with one RF remote (or multiple RF remotes). Or you can run an RGB controller and get three circuits of control for the price of one
Here's three fuse block alternatives that I have used (only speaking for what I've used):
Amazon.com : Blue Sea Systems 5026 Blue Sea Systems ST Blade Fuse Block 12 Circuit with Ground and Cover : Fuse Block With Relay : Sports & Outdoors
Blue Sea Systems 5025 ST Blade Fuse Block - 6 Circuits with Negative Bus and Cover , 3.32'' x 4.89'' : Auxiliary Fuse Block : Sports & Outdoors
Buy WUPP 12 Volt Fuse Block, Waterproof Boat Fuse Panel with LED Warning Indicator Damp-Proof Cover - 6 Circuits with Negative Bus Fuse Box for Car Marine RV Truck DC 12-24V, Fuses Included: Fuse Boxes - Amazon.com ✓ FREE DELIVERY possible on eligible purchases
Also an option to run one of those on the driver's side and another on the passenger side. If you go that route, the smaller ones make plenty of sense.
I'd skip the hard-wired switches and go RF and IR remotes for the fan and the lights. We stick them to the walls with magnets. And then even less need for anything on the passenger side.
Oh... puck lights. These