Last night I watched the new Thunderbirds series Thunderbirds Are Go!.
It's obviously paced for the attention spans executives assume children have these days and suffers from having it's practical effects overwhelmed by the CGI elements but that aside they basically did my idea for what to do with the defector shield dish in ROTJ.
In the episode it's a solar collector but they snap the dish off the tower with explosives and it slides downhill.
In my mind the dish sliding was sort of like the Enterprise dish crash in Star Trek Generations but other than it's pretty close.
I would then place the scene where Han is bandaging up Leia's arm inside the fallen dish.
Makes more sense than blowing up miles of forest.