Probably pointing out the obvious, but you can buy new Kickstart ROM's still from AmigaKit:
http://amigakit.leamancomputing.com/catalog/product_info.php?products_id=284
They will be able to supply them until the world runs out of blank eproms.
I'd rather have mask roms, but those are probably quite rare. I think villagetronic were the only source of them.
Legs broken off chips isn't the end of the world. I know someone with a CDTV that they used to pull one of the chips out because it made it more compatible with A500 games. When one of the legs gave up I got hold of a socket, inserted the chip and soldered a wire from the broken leg to the socket (it might have been a paper clip instead of wire). If there isn't enough to solder to then a knife or dremmel should be fine to expose more.
If the one you bought off ebay is an eprom then I wouldn't bother saving it though.
