UKC

This chap seems to make short work of the easier stuff at the climbing wall so I think it's only a matter of time before we see it in the greater ranges.

youtube.com/watch?v=q-bnM5SuQkI&

I have a set of replica lorica segmentata (Roman plate armour). I clearly need to take that down to Boulders and give it a run!

Is it breathable? Also options for a full crotch zip look limited.

If you use old school kit like that then I think you need a papryrus rope.

Your local blacksmith should be able to add a funnel.  They don't come as standard because they tend to catch on things.