Are you going to keep the 33s? If so, I don't think you need to spend on the d30. I would use the Sd30 $$$ on recovery/winch and armor.
Jeep hard, Jeep safe!
1998 TJ Moss Green Sahara w/ numerous scratches & dents whose playground is on a tropical island that's 33 miles long and 4-12 miles wide, in year-round 82 degree weather
Edit: "Now jeepin in Oregon"