As was said, you have to know what risk the company can take. 48+ hours D/T is painfull for most automotive companies (means pretty expensive).
If you can handle 48h D/T it can be covered by service contract with FANUC service center. The units from your list are handled in FANUC warehouse and could be delivered in 24h. Those are my experiences from middle EU region.
Anyway, discuss it with your local FANUC service center.