hello welcome to the site
you will need to drill the latch assy so you can turn the latch .
the latch is going to run you about 95.00
the problem with the newer models is the lock actuator is dead smack in the way but the new latch comes with the actuator.
to make more room to work remove the drivers seat and then your able to remove the door panel carefully with our doing to much damage.
use this as a reference as the 99 will look a little different due to the actuator. but the latch will be the same .
use a 8mm drill bit..
remove the actuator.
yes the drill will make contact and roll the latch up and the door will open.
this is a time consuming job and have actually have had to drill whole plate off
not really just be careful and make sure you get the all the screws off.
i have only broken 1 door panel out of about 20 latch failures over the years.
and that was on coupe.
just take your time and you will have to use some muscle when removing the panel.