If the USA won’t sell them a B52 they could ask Airbus to sell them a Airbus A400M Atlas it can tote 20 tonnes 3450 nmi at up too FL400. Pallet and ramp launched cargo systems are common for drones, JDAMS, heck the US even air dropped a ICBM out the back of a C5. Cargo bombers is old hat.
There appears to be a number of C-141s at Davis-Monthan.
CALL KALITTA AIR CARGO