Size as much as weight led me to a Nano from an admittedly way-too-large for biking Clark deluxe. Complete rig w. generous tarp compressed into 24oz both by weight and volume.
Bu, you can't post such fine and rare piks without a few labels for the gear!! Not just the tarp: who built that wood shelter you found to protect from UV ?
And unusual, to me, mounting of additional water bottle(s) on the bike fork. Nice balance for rear. Do be aware, too, that around 1950 TdF riders mounted their bottles on the handlebar. That's still possible.