Done some thinking about this, my local tuner "Rallytec" is a Series 2 specialist and fabricates his own quickshift for the mk4 escort/series2 turbo from original ford linkages that self centre - i have no idea on price but worth a fone call?!
Rallytec -
http://www.rallytec.co.uk/ - 01245 362288
Read the bottom of the homepage!
362288