Good luck with it mate - might be worth checking the trailing arm mounts as well (you can put your finger inside and check to see whether it’s crusty and your finger goes through.
I got inner/outer sills for mine from AH Schofields as their panels are of a decent quality.
Those snorkel boxes tend to rot out where water gets in through the rear air vents. I’ve got a magnetic strip behind the vent so the water runs off of the gutter and behind the strip and away from the vents (not my pic but you can see how it works):
I got inner/outer sills for mine from AH Schofields as their panels are of a decent quality.
Those snorkel boxes tend to rot out where water gets in through the rear air vents. I’ve got a magnetic strip behind the vent so the water runs off of the gutter and behind the strip and away from the vents (not my pic but you can see how it works):