Update:
Went with a Juiced HyperScorpion for the eBike. I call it a hybrid eBike/Moped as it has a controller that sets the class of eBike to operate as from no pedal assist up through Class 1, 2, 3…and beyond. It’ll go over 30 in moped mode. Things built like a tank, weighs over 100 lbs with battery, and delivers both giddy-up and range.
For the rack went with the eBike Golf rack from Divnick. Solid construction, straightforward install, does the job, all good from Divnick.