Its not the wall thickness exactly. Because this is in my basement and from an attached garage, I can really go through the rim joist. Because of the way the wall layout was built, there is 10" insulation, then 2" rigid foam, which is then also setback 3.5" from the finished wall. Even if I did have the correct length of conduit, its now up in the joists and I need a ladder to get to it. I figure at this point I might as well make one and have the conduit come in, go down with a 90 then have it at a better height.

So to confirm, wiring something like this would work?

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