Thanks Honcho.
I know of the Hase Pino, it has fascinated me for years. But I only know it from pictures online, I have never seen one in real life. I have talked about taking time off work to just drive to a store that stocks them, someday, to see it. So, yeah, Hase Pino, sounds great, but it's not a trike. I'll keep drooling over that bookmark now and then.
In my searching I never saw a factory approved electric kit for the Pfiff. I did find out the seven speed version with suspension is called the Pfiff Primo. And on Tuesday I ordered one, a Pfiff Primo. I have already paid for it, it should arrive next week. When it gets here I will ride it around the parking lot by my house, under my own power, and see how it goes. Then back into the garage to take measurements and make plans.