Well Thanks.
Yes, I built it from mostly .029" sheet steel. I like to make toys for my grandchildren. I had a lot of fun hammering the compound curves, and my grandkids and neighborhood kids painted the flames on it for me. It runs a 48VDC MP3 at the rear, and it is scary fast. I now have the MP3 in another trike. I'm experimenting with leaning into turns. I've made a couple of pedal trikes similar to your layout as well.
Ride carefully, trikes tip......
TTFN,
Dennis