There’s a story set on a world very like that in the latest issue of Shrapnel. If you can acquire a copy, I highly recommend the story, called Daybreak on Shining Mountain. In that case the colony was established just before the Star League collapsed, apparently in what would become the Ghost Bear invasion corridor, close enough to the periphery that an HPG could’ve gotten a signal to civilization, but they didn’t have the parts to finish theirs. I’m not sure of the force’s entire composition, but their command lance in a Cyclops and three Awesomes, and they also have a lance that’s a mix of Galahad-1D and -2D. I want to say there was a Spider mentioned, but that may have been in their opposition.
Edit: just checked. Definitely a mention of Spiders, plural. Context suggests those were the smallest mechs in the force, and there’s also mention of heavies, in context apparently bigger heavies than the Galahads.