Now they're making OneShot 1/4 rack chassis that will fit any of their existing preamps. Annnnnd they're making it so each preamp will have a DI and a pad, which I've been dying for on my modules. Annnnnnd 4 modules will fit together into a Raxxess something or other rack. I'm not 100% sure on the PSU situation for multiple units yet, but 1 unit will come with an external supply. The long and short of this is you can build your own API 3124 for $1600 and space it out to when you have the cash.
I'm more than a little excited after stumbling upon this.
SCA Website
I'm more than a little excited after stumbling upon this.
SCA Website