I talked to a local spring shop about options for the squeaking. They didn't offer an graphite based paint or the like, but said they could install anti-squeaks pads. This would require them punching a hole to mount the pad. Sounds like the right solution, but they wanted too much ($10 per hole). I may consider this if they would do it for half that, but $80 is too much for anti-squeak pads, and I don't think you can drill spring steel (?).
They also mentioned doing custom, full length AAL's for $110, a pair I believe. I may consider this, but don't know if I can work out the downtime for the X (I'm assuming they would need at least one spring off the vehicle for design). Plus, I still like the 2-leaf Calmini kit for the price and extras it comes with.