yes you can replace ya electronic speedo with a cable speedo drive,i was more talking about how you won't be able to use the bh speedo cluster so you can throw out the electronic speedo drive and the speedo cluster.
i have for bc5;
manual speedo cluster
speedo drive nd cable
clutch and brake pedal box and foot rest
x-member and mount
flywheel..(with hair line cracks)pressure plate is good, clutch plate is not.
clutch master and slave clylinder with all the lines,
manual abs computer
manual ecu
rear driveshaft..(the front halfshafts will fit from your auto).
gearboxes come and go...
edit: the rear inner cvs are also different.