Why not just get a Titan? It's practically the same regulator inside and, from what I've been told, breathes just fine. I'm a Conshelf diver, myself. Conshelfs use the same service kit as the Titan, are easy to service and can be bought on the used market for cheap. The Conshelf 14, 20, 21, 22, SE2, etc. are excellent, dependable regs. The older ones, like the XI and the early model XII only had two LP ports, but the 14 and later had three or more LP ports.
Personally, I would not pay the high price of the Legend but that's just me.
The Titan is similar to the Conshelf. The Titan LX which is different then the Titan, The Titan LX
second stage is similar to the Legend 2nd stage and the 1st stages are very different.