Those arm rests would concern me a bit - no height adjust pillars - over that time I'd expect you'd need a fairly high rest height to reduce neck/eye strain if you planned to aero most of the time.
I'd want to be in the same position I'm in for the 24hr I guess. If it's sustainable for 24hrs it should be ok for longer. Problem is, then the drops will be way too close.
Those arm rests would concern me a bit - no height adjust pillars - over that time I'd expect you'd need a fairly high rest height to reduce neck/eye strain if you planned to aero most of the time.