You should be able to do a sector dump of the harddrive, although finding something compatible with 98 might be an issue
this was discussed already, you can use WinHEX - Clone Disk http://www.winhex.com/winhex/hex-editor.html your Dev.Kit HDD as usually contain virtual GD-ROM image in .hcd format, right ? I have an experience in converting this to common GDI