I did like the spaciousness of the Scarp 1 and whilst that is probably overkill for solo use I not that keen on going to the other extreme with a coffin.
My short list is:
ZPack Altaplex - 663g/23.4oz - AU$920
ZPack Duplex - 759g/26.76oz - AU$931
MLD Solomid w/Innernet - 719g/25.36oz - AU$785
MLD Duomid w/Innernet - 875g/30.86oz - AU$846
The weights include stakes and Zpack poles as I don’t use trekking poles on the bike.
I did consider the Cirriform SW 1 person but it appears from the video I saw to have little to no internal space for gear plus at 813g/28.68oz it is at the heavier end.
The Cirriform SW 2 person is simply too heavy at 1020g/35.98oz.
My other thought was a MLD Solomid or Duomid with a Zpacks Splash bivy or MLD Superlight bivy but there is simply not enough weight saving for me to justify the experiment. In fact the Solomid was heavier going this way so the Duomid/SuperLight combo would be the only option at 725g/19.86oz.
I also briefly considered the Nordisk Telemark 2 ULW but it is heavy in comparison at 898grams plus stakes and bags and the cost is around AU$701.
My thinking is toward the Zpack Altaplex or Duplex but then the cost saving favours the MLD options, but at a weight penalty and the hassle of having to source poles elsewhere.
Keith Foskett’s review of the Altaplex suggests that it would have the minimal interior space that I would desire.

Any other suggestions? Thoughts? Is the Duplex the better option? It seems to get a lot of love online.