I checked the colors on my Shopsmith equipment against your photos, and most of my red parts look a bit less dark than your new speed control handle. None of them have the orange cast, except for one table insert, I think from eBay. However, my machines are either older (10E/R's), or are fairly new, and all are of the gray persuasion.
Here's a Greenie that was professionally restored by Skip at MKC tools. It appears to have red-orange paint on those parts. If it were me, I'd keep the original parts original, and paint the new control to match.
Edit:
Here's another Greenie, which appears to be in original condition, with red paint that looks similar to your original parts.