Sorry for reviving this thread but I though it would be nice for peepz to know that today they uploaded on Aminet the lost archive
http://aminet.net/package/util/boot/kick13scsipatch
Just made a Kickstart 1.3 with the patched 43.45 scsi.device but need to test it out :P
Edit: I tested it under WinUAE and it seems to work just fine! (ofc I enabled A600/A1200 IDE emulation). With normal 1.3 ROM I get the Kickstart disk screen, and with the new one... HD boots into WB1.3 \o/