Yes, how many RMAs for each country is a "head-scratcher" you bet with all; LM and the SPY 7 (V1, V2, & V3) countries are keeping that fact "close to their vest".
On the topic of the number of RMA in the different SPY-7 radar variants ...
I note a user by the name "Milspec_1967" wrote in a German language forum ( German language reference: https://forum-sicherheitspolitik.org/showthread.php?tid=5492&pid=242434#pid242434 ) : "SPY-7(V)1 that will go on Canada's FSC uses 9 RMA's and SPY-7(V)2 that will go on Spain's F110 uses 12 RMA's." (Google translation)
That was partly corrected by user by handle "Ottone" ( German language reference: https://forum-sicherheitspolitik.org/showthread.php?tid=5492&pid=242472#pid242472 ) who stated: "Not correct: SPY-7(V) 3 comes on the Canadian River class and is the smallest variant, while SPY-7(V)1 was ordered by Japan and represents the largest maritime configuration." (Google translation)
I have no idea as to where user "Milspec_1967" obtained their numbers of RMA from. Given the names of the variant SPY-7 (v)1 was inaccurate in Milspec_1967's initial post (where v(3) added later noted as a correction by user Ottone), I don't know whether to believe such. Further no reference was provided.