Help identify subframe and rack

[pokey64]

Can anyone help identify what subframe this is? I did a bunch of digging around on the various mfg sites and can't find one that matches. I am starting to guess that it is a custom deal but I'd like to learn more about what I got.

When we bought the car it was advertised as having a "Chassisworks looking subframe". We did not buy it from the guy that originally modified the car so I can't ask him.

Also, now that it's warm out we're starting to put some miles on the car. Turning at low speed is pretty stiff. We are thinking about swapping the manual rack for a power rack. Does anyone know what brand this rack is by looking at it? I can't see any markings on it but I haven't jacked it up and looked underneath and on the backside yet.

I appreciate the help!