5 mins tops
I use a desoldering gun. (soldering iron with vac pump)
wire snips (cut the leads on the stock rom
Heat Gun (heat the remaining leads)
Small needle nose pliers or tweezers (pull out the leads when solder is molten)
Solder wick (used to clean up the holes)
Solder (flux cored)
takes about 10 mins to solder a new socket in, clean it up with propanol, and spray PCB sealant.
it shouldnt take long with the right tools.
Just cut the leads off the old chip, its easier that way and you dont risk pulliing the copper wires out of the board if you pull it out to hard.