Yes there is a tilt tube but the cable is at least a foot too short to reach it. The hillbilly way of making it work involved building (used loosely) a console from scrap wood and moving the steering box back a foot or so. It looked awful and was on the Merc I sold so I ripped it out and am attempting to do it right.
My boat originally had the cables and pulleys from the ancient Atwood steering I believe. My parts boat still had that setup.
I have that plate and was not sure of what to do with it. The white painted mount was already on my boat but was not in use when I bought it.
I'll get pics of the engine at lock to lock tomorrow.