Stock A1000 can only use 256KB Kickstart ROMs. So anything > 1.3 is out.
Kickstart 0.x betas, 1.0, 1.1, 1.2 and 1.3 are possible. You can't use the images on the Amiga Forever CD directly, however. You must boot the emulation and then use program to save the file. You can use SaveROM from BlizKick archive.
Once you have the ROM image in a file, use WriteKickDisk to create the Kickstart disk.
http://aminet.net/package/util/boot/BlizKickhttp://aminet.net/package/util/misc/WriteKickDiskFinally, it's also possible to combine the Kickstart and Workbench disks (at least if you implode most of the WB files, or delete unneeded stuff). See
KickWork thread.