19" alloy spare off eBay. Decent used tyre from a local dealer (fitted). Mechanical scissor jack with built-in handle in a bag from a breaker's yard (I think it was Ford one); they are not expensive. Make sure the top plate of the jack suits the Antara jacking point to keep things stable and to avoid damage. QED and peace of mind.
2015 2.2 CDTi SENav 163ps manual 4x4 in Carbon Flash with 19\" alloy spare towing a Bailey Unicorn III Madrid @ 1500kg.