These are the things you would need to consider:
making a spot for the clutch, runniung a clutch cable, mounting a shifter, running the shift linkage, etc.
for a general idea of what is involved look here:
http://www.saabnet.com/sites/900conv...900convert.pdf
eventhough it is a saab the ideas are the same except your tranny is not underneath the engine like the saab's