Your projected eclipse image reminds me of the 1st time I managed such a thing, and I also am curious about the gear you used.
Long away and far ago, I had just returned from Turkey and Germany during my time in USA military service, (70s !), and had in my bag a Nikkor 500mm mirror, and a 24mm wide angle, with 85 deg.
Tripod mounted the 500, used a bellows directly on it, and the 24 got an adapter to gender reverse its mount for the back of the bellows, so both lenses fronted away from each other. Image was "Yuuuuge", we had to rush for a bigger board to project onto.
No total eclipses due here till 2045, but in 2024, Texas to Maine!
Annular or partial will move from west coast to Texas 2023.
I think I need to look into a solar filter!