Don't wear headphones! Good hearing can fill in for a lot of what is hard to see. I was a 1/4 mile oval dirt track racer for 12 years. Its almost universal on dirt tracks not to allow the use of rear view mirrors so as to discourage "mirror driving," where you keep shifting lanes to block a faster car. You really can't turn your head much at all the way you are strapped in. Yet I developed a good sense of traffic around and behind me that I could not see. I think with proper caution you will be fine.
In your position I would be checking out mirror options.
Best wishes for your fullest possible recovery and no more strokes!
Don in Austin