Fully 10,000 miles from their birthplace at Tweenhills Farm and Stud, Qatar Racing homebreds Buckaroo, Middle Earth and Valiant King now face the most important two-mile test of their lives on Tuesday, with a place in history assured should one of them reach its end as a Melbourne Cup winner. From the lush paddocks of Tweenhills to the manicured turf of Flemington, it's been quite the journey, both literally and figuratively. Between them the trio amassed 27 starts in Europe - Buckaroo and Valiant King with Joseph O'Brien, Middle Earth...