The deal on the R3 from Excel is unbeatable. What I am about to say is not for everybody, but you can come so far out ahead by assembling your own. It really is not that hard to do.
You can get an Emonda SL frame for $999, full Ultegra build kit for $623 and a really nice set of carbon wheels with CX Ray spokes and DT 350 hubs for $639. That leaves roughly $250 for bars, stem, tires, tape, saddle, etc, etc. Buying take-off bars and stems off the forums or ebay is incredibly cheap. Even if it took you an extra month to get all the parts together it will be worth it in the long run.
https://www.trekbikes.com/us/en_US/b...Code=black_red
https://www.merlincycles.com/shimano...er-113147.html
https://www.wheelsfar.com/38mm-x-25m...-cm-25u-4.html