I have the RS2k setup on my fiesta now for... 8 years already .

I had created the spacers from a set of ka/puma spacers (which we needed to modify slightly).. this way we didn't need to grind of a corner of the standard FRST beam.

the bolts used to fit the hub to the axle came of a sierra cos (as these are longer)

We used an old socket (16mm) of some 20mm long on the handbrake cable, as under a RS2k the 2 mounting point of the handbrake cable are lined up next to each other (near the handbrake handle) .. and with the fiesta, the left (or right) one is placed some 20mm more backwards.
The result (without the 16mm socket) was that there was to much slack on the handbrake cable. By cutting open the 16mm socket, placing it OVER the inner cable and fixing it with tie-wraps, we removed the slack , as the outer cable got longer... now the handbrake works just fine (-: and is adjustable using the adjusters under the car..

To bad i don't think i have a picture of this anymore..