Update.
We are now all booked (although 3 out of 4 of us still has no idea


) and fully paid off. Ground travel from the WDW Resort has been arranged and paid for as has the onboard gratuities in advance.
Travel insurance for the cruise has also been paid for as non US bookings are no longer covered by the VPP.
I've indicated that the booking is for a birthday celebration (although there's nowhere to note it's for a 50th birthday) so I guess I'll head to guest services once on board to leave more details.
So, what else do I need to do/complete/print off from this point? I've got pictures of everyone's passport, ESTA, and a headshot picture of each person (different picture to the one in the passports). Am I able to begin loading documents or am I still too far out?
Many thanks in advance.