I spoke to PIRATE, and they dont have the huffy cranbrook hub adapter anymore.
(i own a cranbrook too)
Our hub is a Shamino Falcon (from me seeing that on the brake arm), and they stopped making the adapter. Supposedly some hubs/wheels have failed.
you are going to need to switch over to shamino cb 110 or cb 110e hub and use pirates adapter that fits, then see if you can relace your spokes. (or buy new wheel set)
From the gas engine distributor, they say the rag sprocket attachment is good, and a problem if you put it on an old bicycle.
I'm gonna give it a shot that way for now.