Wow - that's terrific! :)
You can buy a copy of your manual from Linda at Relics - they do a *great* job of scanning, and most of their manuals are spiral bound and plastic covered.
http://pages.sewing-machine-manuals....1834488/1.html
You are going to be amazed at what that Kenmore can do with free-motion quilting. :)
Looking at the zoom picture at Relics, it looks like the 1400 is a super high shank or maybe only a high shank. Either way, you will probably be able to outfit this machine with a complete set of attachments and cams really cheap if you start watching eBay.
Both of them will absolutely plow through anything.