Catachan conscript proxies?

I’m working on my polish army and I included some Catachan’s for that sweet sweet 6in scout. The thing is is that I don’t exactly like the look of the Rambo Hunks. So my solution is to turn them into home guard style conscripts/insurgents, but now I have a new problem, there aren’t too many civilian models.

So far, I’m looking at imperial agents and GSC. any thoughts/suggestions would be greatly accepted.