Oil Pan / Sump Free delivery
http://www.ebay.co.uk/itm/Nissan-Micra-K11-Oil-Sump-Pan-Petrol-1992-2002-1-0-1-3-/141684856186?hash=item20fd13557a:g:nisAAOSwu4BVyK25
Also hub caps will be on Ebay.
Its a good starting point for your search if you can not get them local
I just bought a sump from Euro Car parts.
Cost me £36 and £3 for the sealer, Thats because I wanted them quick.
So plenty of options for new bits.
Hope this helps a little.