Custom lots-of-titanium Brompton

I'd say that's a pretty fair summary, yes! However, the trouble with the calipers is that they're rather unusual in that the cable enters from the bottom. It's possible to re-route the cables so they enter from the top, but that rather screws up the fold and so doesn't make it work better. It's possible to bodge an adjuster and clamp onto standard calipers to reverse the cable direction, but as you can probably tell from the word 'bodge' I don't find that option particularly aesthetically pleasing.

If I find some billet titanium upside-down cable calipers, I think there's a fair chance they'll make it onto the bike. But at the moment I haven't.

there are alternatives but i don't want to share my secrets ;)