First, you gotta copy the MOO2 cd to the mac. I'll assume you put the entire contents under USERNAME\Orion
Where USERNAME is presumably the MAC's name.
Then find and install that MAC free- or trial-ware version of DosBox.
Then, after you install it and run it, the mount command is:
mount c ~/orion
Dos-style C: is now mounted to the USERNAME\Orion directory. Now do what Lord Brazen tells you to.
Patching:
Lorb Brazen's patches won't run on a MAC. The first is a zip file. No biggie. Unzip that into a directory, and use the Mac Finder to copy over the patched files. For patch 1.4, I installed and patched on a windoze box, paid attention and wrote down the patched files (you know, the ones that patch prog talks about while you're executing it), and copied those patched files (I think there were 4) to a second patched-file directory, which I copied into the MAC installation directory, again using Finder. They just wouldn't run for me through dosbox.
After you're done copying and installing and patching (which hopefully wasn't that confusing), you'll want to edit the conf file, right? It's under USERNAME\Library\Preferences\DOSBox 0.73 Preferences
If you've gotten this far, I'm sure can figure out how to modify that mount command to the orion2.exe directory. I had trouble getting the video to work right, and had to experiment trial-and-error style to get it working right. I think what finally got my girl's video working right was 'output=overlay'. The IPXnet commands worked the same as windoze. It's been a while, but I think I didn't have to worry about installing IPX or a MAC version of NWLink. I think.
Enjoy.
And to think this could all have been avoided if we didn't have to worry about MACs.