So when GW finally created an Army List in their expensive set of Horus Heresy books it was time to eBay the Imperial Fists, buy the books (because they're so pretty!) and take the plunge. The start point arrived earlier this week.
I have to admit that, sadly, it's far better than anything I could have created. But also it fits with what I had in mind. I'm looking forward to painting them up, if not actually playing a game with them. I'll lose. I always do.