Don’t have the link anymore but Israel is buying KC-46s. Without generous US financial support, I suspect the Israeli airforce would prefer MRTT330s.
The DSCA notification:
Israel – KC-46A Aerial Refueling Aircraft | The Official Home of the Defense Security Cooperation Agency
Transmittal No:
20-12
WASHINGTON, March 3, 2020 - The State Department has made a determination approving a possible Foreign Military Sale to Israel of up to eight (8) KC-46 aircraft and related equipment for an estimated cost of $2.4 billion. The Defense Security Cooperation Agency delivered the required certification notifying Congress of this possible sale today.
The Government of Israel has requested to buy up to eight (8) KC-46 aircraft; up to seventeen (17) PW4062 turbofan engines (16 installed, 1 spare); and up to eighteen (18) MAGR 2K-GPS SAASM receivers (16 installed, 2 spares). Also included are AN/ARC-210 U/VHF radios, APX-119 Identification Friend or Foe transponders, initial spares and repair parts, consumables, support equipment, technical data, engineering change proposals, publications, Field Service Representatives (FSRs), repair and return, depot maintenance, training and training equipment, contractor technical and logistics personnel services, U.S. Government and contractor representative support, Group A and B installation for subsystems, flight test and certification, other related elements of logistics support and training. The total estimated program cost is $2.4 billion.
The rest of the notification you can read at the link.
You are right, Israel is planning to use US military aid funding to pay for the acquisition
US State Department approves $2.4B sale of KC-46 aircraft to Israel. The Defense News story cites Israeli news sources.