The halogen tubes in the original have been obsolete for some time now. ELE7052 from Connect is a halogen element unit 200mm in diameter and 1800W. The “look” is different when hot – not the 2 lamps across the plate but a halogen “loop” instead. It should fit that cooker with no particular modification apart from re-routing the wiring. Priced at £29.85 + VAT – not too bad. 😉