MacBook Pro later 2011 - HandOff and AirDrop not enabled
The MacBook Pro late 2011 has BT 2.1EDR, not 4.0. The version 4.3.0f10 is just a software version number. The bluetooth 4.0 was included in 2012 MBPs. The MacBook Air, Mac Mini and iMac got those in 2011. So, the answer is No, you can't use the tutorial to make HandOff work on your Mac.

It might work if the newer MBP bluetooth card is compatible with Late 2011 MBP. Check the Apple Support Forum thread below.

2012 Bluetooth LE card on 2011 MBP