New Coil-Over Conversion Suspension

This is why I asked if it was an MII spindle. I was hoping someone would leave the well beaten path and build something around a new option. I don’t know, maybe it isn’t possible but it would be nice to used something that fit the chassis a little better (i.e. taller). Add that there are options for ABS and wheel speed sensors with those options. That’s why I am trying to work out a custom spindle that uses the S550 rear hub/bearing assembly.
I know this is a name we haven't seen in a long time, but wasn't XV doing something with Aluminum Control Arms & Spindles? I thought I remember seeing something years ago. I don't know where they went, but they did have a 68 Charger I really liked.