Line Trimmer for rotary Mower

I am disabled enough that walking aroun all my trees and curbs after mowing with my zero turn riding mower is a chore. I made a mounting bracket for my Toro Gas Trimmer, but the long shaft and and engine make it too ungainly to be practical. I went looking on a Google search for one that might work but the closest one that came up was for a walk mower that fit on the left front wheel.(it was a prototype and not in production, or really what I want) My thought would be that a small 12 volt motor with a shaft that i could put trimmer line thru could be mounted the the trim side of my mower deck to get right up to a wall or tree as needed, and all I would need is a switch and some wire.. Is there something like this already out there somewhere?

 

I saw this on Tractor time with Tim youtube. Check it out...https://www.youtube.com/watch?v=ZmzKWkLfgqA

 

Such a thing exists. Look at the Peco-Z trimmer.