I did a "spliced" repair as I didn't want to mess with the driver's side tow pull bracket (there was no corrosion in this area on my car).
The RD panel I bought was a perfect fit to OEM.
The only "issue" I had was getting a good rosette weld on the rolled lip of the trunk pan (which was also replaced)...I wound up through drilling the pan to cross panel seam.
If you look closely at the photos (in my thread) of the left sail panel repair, you'll get a glimpse of the 2x4 I cut to maintain the trunk width before sizing the new panel. Now that the work is complete and I've temporarily fit the rear deck lid, the gaps looks good front to back on both sides. (I don't recall the cross dimension, but it can be found on the dimension specs of this forum.)
http://www.914world.com/bbs2/index.php?sho...42108&st=20