neodymium is hard to store in bulk because if you walk past your fridge with a kilo in your hand, you will become an interesting fridge magnet
there was an Nd thread a little while ago. only preliminary info and just a few links, but if you want a big chunk, it's a start search the site if you wish I think one of those sites was aussiemagnets.com.au
Dusty, silverfunk gave a link to Rotometals @ the top of this thread. http://www.rotometals.com/Indium-Ingot-s/7.htm
http://www.elementsales.com/ecoins.htm Not a good way of stacking but a great resource semi-numismatically and very geeky
I dont think that there would be any issues selling that metal ( and most others ) on this forum. Not sure if you remember, but a while back, there were Aluminium slabs sold on the forum as well. Indium would sell quickly as well ( hey you can cut it with a butter knife and its a metal - thats something )