I saw that picture at the beginning of this thread of that red colored bike. The chain guard had reminded me of what I had started out with when I saved it at the dumpster where it would have been taken by the scrap metal guy or into landfill.
What I saw on the web of what it may have looked like.
Technical Resources Tab - then Picture Database for Sears Foremost
oldroads.com - Vintage Bicycle Picture Database
You might get some ideas of the fake but very stylish gas tanks / head lights from the way they were originally made on these old time bicycles.
It is not what I am doing as I am when done with my motor bike build; I want it versatile to be moded to be an art motor bike. In the future when time allows I should like to keep the look close to what they were back then, just motorized.
The picture at my albums page shows the steel frame paint removed
I updated my post possible side car today