3 gang extension to bring outlet out to surface mount to run conduit up to ceiling?
My ex-wife is currently running her garage fridge on an extension cord (yes I know, I know, at least it’s heavy gauge lol), I would like to find a 3 gang extension box to bring the box out to “surface mount” with conduit knock-outs so I can run conduit up the wall to the ceiling and over to the fridge for a remote outlet. I have not been able to find anything. Can anyone recommend the right extension to me? I would very much prefer to not cut the drywall and replace the whole wall box, but in a worst case scenario I am willing to do so (I know how to do it, just don’t like to lol). There are studs in the way of the path I need to take so I’d like to avoid that. It’s a rental so I’d rather not get too deep into it if I can avoid it. Not worried about the wiring, I do plenty of that at work, I’ll be replacing the existing switches and outlet with new stuff while I’m at it. The main goal is just to get rid of the extension cord lol.
I do have the option of running the outlet over from the door opener outlet in the ceiling, but it’s much further away, and there’s also studs in my way from that direction, so either way surface mounting conduit is going to be my best option without getting too deep into things.
Any help/advice is much appreciated!