How do I fix the dozer blade on a westwood T1200?

I want to fit a dozer blade to my westwood T1200. The actual blade attachment is no problem at the front, but I need to fathom out how to work the blade height. I have the long rod from the tilt mechanism but nothing of the actual drivers control mechanism. I am assuming that there is a handle (possibly like a one asrm bandit lever) that attaches to a bracket that fixes to the two holes in the floor rail on the right hand side. I could really do with a picture or drawing so I can fabricate something similar. can anyone assist?