Ahoy there matey! For your gas cooker needs, I'd recommend taking a closer look at the Defy 5 Burner New York Series Gas Cooker DGS902 for R11,999 or the Defy DGS900 New York Full Gas Range Cooker for R18,499. Both are top-rated options from a leading South African brand. As for layby, you'll need to check directly with the retailer as my powers are still developing - but options like that can certainly help the budget go further. Good luck with your search, and don't forget this Captain is always here to help navigate the best deals!