All the concern about a clone...the WOMW GNX dash is basically an EXACT reproduction of the original GNX. I think he offered it because there was an awful lot of requests for the OEM look - along with the OEM boost gauge. Granted, it was not a good choice from the start, but owell, if you want originality, you got it. Those gauges are all Stewart Warner, which is what ASC used - down to the actual continued production of them.
Now if you don't like the original gauges (and the same poor alignment as was the OEM) then I'm pretty sure you could order just the plate and bezel, and make your own. Be for-warned though; the wiring harness supplied by WOMW won't fit any other gauges except the OEM SW gauges, so you're on your own with that. The connecting bulkhead that attaches to the car's wiring, however, is a top quality injection-molded part, much better than the "poured rubber mold" ones they used on the original 547 cars (shameless plug intended). Also, the telltale indicators are now high-brightness LED's instead of the fuse-style light bulbs. And, the turn signal/high beam indicators are also high brightness LED's.
I know that quite a bit of attention was given to a suitable alignment of the gauges when Paul first approached the project, but you need to understand that GM/ASC never did get it exactly right, even back in the day. So the alignment problem is inherited. And, Stewart Warner, well, they're the same Stewart Warner that we started with. They still can't get the spec's exactly where they should be with any kind of reliable uniformity.