Ozzie,
Most domestic oven heaters will not take that sort of heat - they are only designed to be in an environment of up to about 250 deg C iirc.
Kiln elements are made of Kanthal usually, and there are several grades for differing upper temperatures, with the top end having exotic prices, but 1000 deg C isn't too taxing. The elements survive by having aluminium as one of the alloying constituants, and the aluminium oxide migrates to the surface of the metal, giving a protective coating. The elements need to be physically supported at those temperatures or they will sag. Most pottery suppply houses can provide kiln elements as a pre-wound 'spring' which is pressed into a suitable recess in the kiln lining for support.
Beware of raising your kilns temperature too rapidly, you may have problems with solid refractory insulators spalling
AWEM
Andrew Mawson
East Sussex, UK