I was never flexicrew, didn't exist at the time. I did my 6 months at £1000 pounds a month from CTC ( now £1200 a month ) and the got a permanent contract. By the way that's how the cost of the type rating is covered, easyJet pay CTC a lot more that £ 1200 a month for you, the difference goes to CTC as profit and to offset any type rating costs not covered by what you pay.
Talking to the guys on it though at the moment there is no bond repayment from easyJet during that period on flexicrew, so you will just be getting your flexi pay by the hour.
However your loan repayment to the bank will start after your payment holiday during training, so you will need to cover that from your flexible pay until such time as you get a proper contract as a permanent employee. Bear in mind that repayments on your loan/bond tend to come to more than £1000 per month if you've taken a big loan.