Without knowing the particulars, you may have missed the point that the Technika III uses a different lensboard than the later Technika IV, V, and beyond. Tech III boards are square, later Tech IV boards have clipped diagonal corners on the two bottom edges (six sides).
You need to get rid of it NOW, there is no way to enjoy a "Given Linhof" it takes years of labor and toil to truely appriciate the nature of a Linhof...
I will give you $5 right now, so you don't go through the frustration of the gift!!!