Hi Bruce,
This S2S event has driven me to bild a new antenna as well. - Albeit somewhat smaller than yours!
In my case I now have super-lightweight J-Pole antennas for 15, 17 & 20m - so hopefully I can cover whichever band is open to North America.
I used the design from another thread on this reflector here: EFHW Dipole - Mono Band Version - #31 by DD5LP and have done a short write-up on my log here: Portable HF vertical “J-Pole” antennas | DD5LP / G8GLM / VK2JI blog
73 Ed DD5LP.