I don't have that. But thx
Your biggest cost (ignoring currency conversion spreads) is going to be the wire fees. Unless you can personally negotiate better rates with your Israeli banker, those will be relatively high. There are some workarounds, but they might involve additional steps and setting up additional accounts.
I have no experience with Clearshift, but theoretically you would save on transfers. IINM the charge a flat 0.50% on the conversion (subject to a minimum).
For best service and great flexibility I highly recommend VFEXGS.com. It's run by a heimishe yungerman (who uses a UK based fintech platform). The larger the volume you do, the better you will do on the conversion fees. I find the platform very convenient for transfers and payments in various currencies and to various destinations (when I needed, Ukraine was not one of them, but that might have changed since).
For cheapest cost of conversion and live market rates (I.e. lowest spread, as you're converting based on live forex market) Interactive Brokers cannot be beat. Also on transfers into and out of Interactive Brokers those will be domestic transfers so fees will be minimal, but you can only transfer to/from accounts titled in the same name, so not practical for payments (but if you have your own account in the destination country from which you can make the payments, that could work).