Okay, so I got the XLR8 to work (and it took a bit of digging as of course, there is a Ben 10 character with the same name...) and now I'm running a G3 at a blazingly fast 400mhz (oddly enough, it runs at that speed when set for 366mhz and setting it to 400mhz causes a chime but no boot).

Next issue is the MACh Speed software for the processor.

Oh look. In order for me to use the cache on my processor, I must supply a serial!

Oh look! I don't own a serial!

Great....

Edit: I installed the utility and it dropped my speed back down to 366 in respect to my dip switch settings. Looks like either that's as fast as the processor will go or something in the system won't allow it to go any faster.