This will be a first for me...
Landing Doha on Qatar, early am
Depart Doha on AA, 9am to PHL
4+ hour layover
No checked bags

In the past, getting a BP on separate ticket to USA with OLCI has not worked.

Assuming I cannot do OLCI, any transit desk for AA departures open at 4-5am?
If I check a bag through to USA, likelihood QR gives me an AA bp?

This is new to me. And will be new to AA with the route changing from DOH-JFK to DOH-PHL in a few days.