In my opinion, I think the AEM gauge with the silver around the bezel would match the stock instrument cluster the best. There's no chrome in the interior, so I don't think the Autometer ones would look good at all. Lastly, depending on the material that you wrap the pillar pod with, the PLX gauges might blend right into the into it and look decent.

Definitely show pics of the pillar pod - I need one as well and any ideas would be helpful!

I got my hopes up with Hyprlth20's gauge pod and gauge setup he was making, but when I got them they were total cr@p and I sent the pillar back and am still contemplating whether I want to use the gauges (Wideband 02 and boost).