Two lines can now be crossed off the to-do list.
-Mount Headlights
-Mount Nosecone
-Mount Headlights
-Mount Nosecone
I'm pretty happy with how things went. To mount the headlights I cut a 0.4" length of 1"o.d. x 1/2" i.d. tube (fits the 1/2" bolt on the bottom of the headlight) and welded to the end of a 3/4" tube about 6" long with one end smashed down to match the 0.4" thickness. The 3/4" tube fits snuggly into a 7/8" tube welded to the chassis. This makes the lights easy to remove, or adjust the position side to side.
I used dzus 1/4 turns to mount the nosecone. First I riveted the 1/4 turns to the nosecone and attached the mounting plates (after marking and trimming to size), then positioned the nosecone on the car and tacked the mounting plates to the chassis. The nose comes on and off easily. I still need to repair some cracks in the nose, but that can happen at a later time...