Not all Javelin scrappage took place at Shawbury. When 64 & 60 Squadrons were disbanded at Tengah in 1967/68 their remaining Javelins were disposed of in Singapore.
XH762 was the airframe number of a Mark 9. 762 doesn't feature in my logbook, so I doubt it was a 60 Sqn aircraft. The only time I'm aware of this type being at Sharjah was when we ferried them from the UK to Singapore for 60 Sqn's re-equipment in 1961; we staged through Sharjah as one of the refuelling stops.
I'd be very interested to hear whether anyone knows of other visits, I don't know of any operations or exercises involving Javelins as late as 1966 which would have meant flying into Sharjah.