Originally Posted by Windkiller
I since sunk a 4-5 hundred into it and the trailer (I do all my own work)but spending another 4-5 hundred isn't at all possible right now or in the near future.
Given the size of your boat, the force on the tiller shouldn't be all that great. Using a line such as Dan used would work, or I can think of a couple very simple designs that might work for $15 in materials.
However, for a commercial product that first one you linked to looks pretty slick.