The Swedish J34As were the equivalent of the Hunter F.4. How about a simple whiff of Sweden upgrading these to a standard equivalent to the hunter FG,9 as AJ34Cs (J34B being a one-offwtrialing a thurst reverser)?
I was wrong, the thrust reverser was a British effirt. So, J34B as the equivalent of the Hunter F.6 (either new builds or rebuilds) with the AJ-34C being, as noted above, the equivalent of the Hunter FGA.9. Perhaps a later iteration to AJ-34D with the addition of maverick capability like the Swiss added. Perhaps also with an upgrade to the equivalent of a dry Avon 300 series engine.