You'll want a darning/free motion Low Shank foot. Several different ones can be found at Sew Classic on this page:
http://shop.sew-classic.com/Low-Shank-Feet_c5.htm
I have a few versions and haven't noticed a significant difference in them. However, if you plan to outline things, you might find it helpful to have a clear foot that is marked like this one:
http://shop.sew-classic.com/Low-Shan...D-SCF60410.htm
If your foot controller is one of the old button types you might find it gets hot after a period of continuous use. Stop and let it cool off a bit if it gets too hot. They're not designed to work constantly. If needed, you can switch out the foot controller later for an electronic one.
I haven't had to make many changes to machine settings on several different machines I've used. The old machines are pretty basic. You can test tension on sample pieces with a different color thread in needle than bobbin on a sandwich just as you normally would. If you don't have a manual for your machine, you can download one free here:
http://www.singerco.com/uploads/down...54a175ca4c.pdf
Good luck.