Hello!
I'm an MSc events management graduate from Bournemouth University, England.
I've gone through your project needs and i feel i could arrange what you require from overseas. I'm sure there would be constraints but that's what event managers are for. I've previously held christmas ball for 2019 at my university, planned 4 weddings, 1 25th anniversary and a few other events for the university itself. I'll be very happy to help you through your book launch only if i get a copy for myself once it's launched. Haha.
What i would primarily do is get in touch with venues in the specified areas and get them to make arrangements for your launch. I'll help you through a timeline for your event and create the specific timeslots for activities so that the event finishes in the specified time. I'll hire you photographers for the respective areas and i'll make sure the champagne and finger food of choice is planned and set-up. All promotional banners and equipment will be set up as required since events like this require such. Awaiting a reply so that i can act soon to get started.