After a bit of moving parts round, I had it how I wanted it, it was simply a case of a bit of resin and M4 screw rod. I was originally going to find a heavy base for it, but I had an old clamp off a ping-pong net lying about and it fitted just nicely, and should make it even more secure. The Ball joints aren't the best but I think it'll do the job it's intended for. So I've saved myself £45ish.

I may give it a coat of green/blue paint so it's easy to key out if need be.