I would like to offer my home range for your friend's use if you are interested. We're located an hour south of Indianapolis in Brown County.
I'm sure that your friend could help me design a course of fire that would work for him based on his visual abilities.
I have a pistol range with berms on three sides. Many steel targets as well as paper are available.
I like the beeping idea that was offered and want to think about that one.
See some of my range reports or any of the NFA Day AARs to get an idea of the range layout. (Note: There won't be all the tables, tarps, canopies, and NFA goodness at the range...)
For example:
https://www.indianagunowners.com/fo...y_a_a_r_s_after_action_reports_post_here.html
You may PM me if you want to continue the conversation privately.