Judging from the workshop manual it is wanting you to disconnet the egr tube from the exhaust manifold from under the vehicle. see step 15 in the attached instructions. Let me know if this helps you at all, I will do a little research to see if there is an easier way.
The workshop manual for removing just the valve is very limited at best.
Yes, patience is a virtue. A good set of jack stand should give you the room you need from the underside