I would get some motherease rikkis for bomb proofness in those first few weeks! Weenotions covers are lush too - maybe two of each should be fine.
I would go for some quick drying nappies - fleece ones like lollipop micro or softee - just so you're not waiting for stuff to dry. Can't think atm who else does fleece nappies! Expect there are loads.
If I was buying again I would get some cool stuff from puddlekins too!
TNG and Jabula have gorgeous stuff too
I know this as have been hunting for a secret santa pressie today!
Have you got washable wipes and a wet bag? Dare I say you could get a monkeyfoot one