I don't have a link to a diy, but I remember it was a straightforward job.
Remove the wheels and disconnect both tie rods from wheel carrier.
In my case they came loose by themselves, but if not, you can use one of these:
3/4" Forged Ball Joint Separator
After that, loosen the screw that connects the rack to the steering column.
Disconnect hydraulic lines.
Remove two bolts from bottom part of steering rack, and slide it out thru one of the sides thru the wheel well.
When you install it back, be very careful with the rack bolts.
Use a good torque wrench and tighten them to spec.
Hope it helps.
boxster S
Threaded Mode
