I see no evidence of any fluid leaking behind the master cylinder,on either side of the firewall.

I am home alone so I am gonna give gravity bleeding a shot. As Understand it,the steps are as follows:

Remove cover from master cylinder

Top off Master cylinder

Starting with the passenger rear loosen bleeder valve

Proceed to drivers rear,=passenger front and then drivers front.

Always keep fluid topped off

When it appears all air has been bled,retighten bleeder valves in reverse order of opening.

Is this correct for gravity bleeding?

What about the master cylinder,should I bench bleed it on the car as well? Or should the Wheels be good enough?