@amigadave
Some observations:
1. There is no point to install IDEfix and scsi.device concurrenty. Remove scsi.device from the resident modules. If the IDEFix command won't work, use LoadIDE or read the blizkick.guide on how to convert it into a resident module.
Alternatively, you can remove IDEFix and keep scsi.device.
2. Since you are using Loadmodule, why don't you just load all your modules with it? The setpatch line should become:
c:setpatch quiet noromupdate