Almost same situation in EU. SRAM Rival is at same price than LTWOO, and Force a little bit higher. For me, no cost/risk option going for LTWOO, and at it first batch.

I don't know if it is because I'm searching from Denmark but I can't seem to find either 105 di2 or Rival eTap AXS for nearly as little as you seem to be able to. Can you or someone else perhaps provide a link or just a site name for deals with either of the two here in the EU?
The best deals I've found so far are:
Full 105 di2 for 1150€ on bike-discount.de.
Full Rival eTap AXS (excl. rotors and BB) for 1260€ on bike-components.de