S30 Z rear brake conversion

Saw this on FB DPAN by Grayson

Someone wanted to know what is needed to convert the rear drums to brakes.

Modern motorsport brackets- $170
1989 240sx rear calipers- $40
1985 N/A z31 rotors- $60
FRSport rear braided lines for 89 240sx- $50
That's right at $320 and you retain stock ebrake function