You are welcome.
To summarise the above;
For Jet2 only the 737 NG and 757 have a doctors kit onboard. The 737 Classic has no doctors kit onboard.
The defibrillators are only carried on the 757 ETOPS flights (only a handful of Jet2 flights in the winter to New York).
No surprise Jet2 didn't reply to the BBC. I wouldn't call the above well equipped with medical emergency equipement.