Connecting a FireWire 800 external hard drive to MacBook Pro early 2013 through its USB 2 port I need to connect a FireWire 800 external hard drive to a MacBook Pro early 2013 through its USB 3 port.

I would have done so through the Thunderbolt port but the adaptor for that is too expensive for me at the moment.

I bought a connector on eBay but the FireWire end was female when I want a male end, but I've looked and can't find a single male FireWire end with male USB 3 end.

I badly need to restore my new Mac so your help would be greatly appreciated.

Thank you.
The Apple Thunderbolt to Firewire adapter is $29, and I don’t think you’ll find much cheaper that that for adapter cables. However if the external Firewire drive is just a normal drive in a Firewire enclosure then you could pull the drive from it and use either a USB3 hard drive case or even a laptop hard drive SATA to USB3 cable. Those cables and enclosures start at around the $10 mark on big ecommerce sites.