If you have access to another Amiga it will only take a few minutes to make an A3000 SuperKickstart disk (KS3.1 or later) from a ROM image. Which you can find on the net or someone might send it you.
http://aminet.net/package/util/misc/MakeSuperDiskIf you fit a new hard drive and you have a SCSI card in your PC you could use WinUAE to prep the hard drive and install the Kickstart file to the right location for the KS1.4 bootroms you have.
1) Yes
2) Nothing
3) Surely you want A3000 Kickstart 3.1 or later??
4) No
