Hello Sinbad. I only know about Bristol / Gatwick, but hope this helps.
The Easy Jet flights from Bristol for dates after 31 March are not yet released (I just tried your dates on the website.) They will be quite soon, and I will book the moment they are - the prices shoot up within hours / days of release. We often get the tip-off on here when they are released, from a wonderful member called Thorpe, and book immediately.
We have already booked our accommodation at Bardis Sun Studios, on the arrangement that we will confirm as soon as we have the flights. They are very kind if there is a slight adjustment in the exact dates, but usually it is straightforward. They book our transfer by taxi.
Best of luck with your huge task! Seems hard enough for just two of us!
Phil