DOes this look right? Front Brake Upgrade Question

[maginter]

Hi All, I just picked up an MK1 that is a 24 year old build. It has the Front Disc and Back Rotor Brake configuration with a 4.5 x 5 lug bolt pattern form the donor car, which is an unknown for me. I am assuming a late 90’s Mustang. I am going to do a big brake 4 wheel disc upgrade. I am going with the standard 2003 Cobra/Mach1 Brake conversion as the replacement. However, looking at the configuration, something looks off to me when it comes to the current disc brake set up.
The knuckle that the caliper bolt goes through looks off or not correct. So, I am looking for comments for:
1) Does this look like a correct configuration for a build of this age?
2) Will the knuckle for the Caliper be the same or need to change for the 2003 Cobra/Mach1 Brake conversion.