The Sullivan Dynatron is a great starter but you would have to convert it to a self contained battery and I have several that I bought at swap meets

http://www3.towerhobbies.com/cgi-bin...XFT88&P=ML

This self contained battery adapter kit requires 12 sub C batteries

http://www3.towerhobbies.com/cgi-bin...LXFT85&P=M

This one requires a charger

http://www3.towerhobbies.com/cgi-bin...XL372&P=ML
http://www3.towerhobbies.com/cgi-bin...LXL354&P=M

This one would work for up to 30cc but a battery would have to be adapted

http://www.hobbypeople.net/gallery/237960.asp

These work well and some are self contained

http://ecsvr.com/wrc/shopdisplayprod...p;cat=Starters