Hi everyone

Looking for a Gravel Bike that can also be used as a Roadbike with a second wheelset.
Requirements:
1. 50mm Tyre Clearance
2. Clean Look (No Pinarellesque Design Excursions)
3. Round Seatpost (not a necessity but preferred)
4. As aero as possible
5. UDH
6. Preferably no storage box
7. Get me through Traka 360 without broken frame and/or back!
Options I´m aware of but that do not tick all boxes: Carbonda 707 (design), Icon Graro (Tyre Clearance), Tideace Noah (Storage Box), VeloBuild Race Gravel (Seatpost), BXT 135 (TC) ...