Gunns,
We are fortunate to be concerned with things like MC riding. I had a 4.3 removed just about a year and a half ago and am doing pretty well. I am surfing again!
I ride a Dyna. My experience has been good so far.
Concerns:
I don't do well with balance in the dark, so I try not to get caught riding at night. I'm not sure how that would work out.
I do pretty good with balance until something causes me to be off balance. Then, I have a difficult time recovering it.
Hearing is definitely a safety issue although it hasn't caught me by surprise on a bike- plenty of times off the bike. I have had some close calls while walking in parking lots. Once I almost got clipped. because of this knowledge, I try to ride in rural areas and stay out of intersections.
I started almost immediately riding a bike on the flat. Once I got comfortable, I got to the MC on 45 MPH roads.
Try to be patient. Your balance will improve with time and there is not much sense in putting yourself in harms way too soon. Work on single leg balancing and squats.
Please let me know how it goes.