Rixtoy, I found the same shortage. My bike of choice for the Southern Tier is a Trek Checkpoint ALR in size 56. The closest to be found is a six hour drive each way. This I did last weekend to get that bike. It is what it is.
Well, this has been validating, to say the least.
But, the good news is there is a Trek 520 in my size a 3 1/2 hour drive away, in stock.
I will need to decide in the next few days given the outlook for the "next one" available is October in my home town for "scheduled" delivery - who knows how that may turn out?
Adds a new dynamic to my touring opportunity, though.
If I make it until October 1st, I will celebrate 30 years of sobriety this year and a tour is what my wife is "gifting" me for that milestone. If I can get the bike now, I believe I could pull off the Pacific Coast tour in August/September, albeit without the Big Sur washout section.
Or, wait for the Southern Tier to start next March. Either way it will be solo, self contained. I am 71.
I like options.