I managed to find an old derailleur with a integrated hanger in my stash of old parts, so got the Allen sport setup with a derailleur temporarily to see how it will work with the double cog on the Sturmey Archer setup.
Have to decide on what type of shifters I want. Maybe both barcon shifter for rear derailleur and IGH?

Found an inexpensive derailleur with a rear facing dropout claw (Shimano Tourney TY300 designed for BMX and track type dropouts) on Ebxx and ordered that so it will not as much a pain for tire repairs.
I searched an hour for a hanger that will work with rear facing horizontal dropouts, but found nothing except the problem solver ones that go on the Axle. What I want is one that I can affix into place that has the slot going backwards, and the correct hanger with stop. Suggestions welcomed.

Found this video on showing how to remove and replace your rear wheel with rear facing horizontal dropouts and a derailleur.