so this pair are possible candidates for the pair of struck off RAF Spitfires rebuilt by the Israeli airforce?

Both NH294 and MK728 were declared as BER (Beyond Economic Repair) on 27 November 1947.

EN304, also SOC on 26 June 1947, surfaced at the Haifa Technical School in May/June 1949 still wearing a faded RG code of 208 Squadron.

EN661, a Mk XI, is another Spitfire mentioned in this category

I think there is more to play on what happened here.

Mark