So it appears I need to use the following instead: https://www.ebay.com/itm/145432273630
So it appears I need to use the following instead: https://www.ebay.com/itm/145432273630
Purchased via eBay (also paid a stupid amount at the time), using a US forwarder to send it to AUS
I will consider this if all other avenues fail. But, as you mentioned, surely the R740 can boot directly without requiring clover.