In that case, do what the Windows 98 boot disk does:
First it creates a RAM DRIVE, next it copies all sorts of files to that RAM drive.
If you grab the RAM DRIVE file from a Win98 Boot Disk, install the info into the config.sys file of a Ghost Boot Floppy, change the Ghost Boot Floppy to copy the mouse driver stuff to the RAM DRIVE and then load the mouse drivers, that may eliminate the lack of mouse problem.
I have tested absolutely none of this, so YMMV. 😀