@ Ruth,
I mentioned some parts i was getting for my smart phone to try and copy/backup (BU) some smart cards.
well, since you have an ipad, you maybe able to do the same thing. here is a link to an article if you care to readup on it and how its done. Note that in the article its not an ipad in use, but an non ipad, but the concept is the same.
enter link description here
note in the article, there is only a few items need to do this and an file manager app.
according to the apple ipad specs, the minimum memory used in the ipad was and still is 16 gb. You probably have some garbage in the memory but that shouldnt hold you back from copying/moving files to your ipad. It may force you to clean up your memory too. You may have to repeat this process several times to completely copy the SD, but its a possible way of doing it without having to spend time looking for someplace to copy/transfer your files.
Re: internet cafes and such.
i have used them in all of my travels in the past 2 years and i dont remember if they had any or allowed transferring of files. the only issue i would be concerned with is having any unwanted hitchhikers in the file transfers.
What you can do is a dual approach.
Buy a hand full of SD memory to hold you over for a few days. Since you already know your video filming habits, you should have an idea of how many SD cards you will eat thru in a few day(s) and i would use this as your basis for the "handful". This will give you time to spend looking for someplace to copy/transfer your files on your first stop and not prevent you from doing the tourist thing. also, you can figure out how you will want to proceed for the rest of your trip. note that while doing all this, you wont be seeing/doing any tourist stuff.
good luck and happy trails.