704Z modification for line roller?

[Yudi]

I'm new here, perhaps I didn't use the search well.

I still fish a good ol' 704Z. It's MPU (70's style with the carbaloy roller), simply drilled to expel water and sand, and I use the side plate from a greenie which is metal.

While the crosswind could be improved, the line lay doesn't bother me as much as the line roller. I would love to modify the arm assembly and put a 706 roller with bearing on my 704.

All in all, doesn't look too hard to do conceptually with some aluminum angle, but I don't have a bridgeport, and the the roller needs to bury into the arm or the line will catch on the shoulder.

Any thoughts on this, contacts for the machining application would be much appreciated.

Maybe I should add...should I even worry about this? Does it matter that the roller doesn't really turn well with fireline and especially braid?