I have two separate entities that I would like to sew together, I know how to deform the mesh that is not the issue...Other then going through med and getting the vertex number of model a and the vertex number of model b, is their a way to use vertex a position and run a trace to model b and return the results ?

I am trying to weld two seams together. The model was one that has been broke into two pieces to make it easier to handle, and I want to weld the seams together without having to code in each vertex if that makes sense