Regarding rear disc set up james, you unbolt the entire hub/backing plate from a mk3/4/5 fiesta...do the same on the mk5 rs2000 and bolt straight on to the fiesta axle. Then use a mk5 escort rs2k disc handbrake cable and its a straight fit. Job jobbed!!

I have seen entire rs2k rear brake set up with the handbrake cable etc being sold here for £200