That's fine, stick to your guns. I feel pretty strongly about it as well. I certainly would change no dialogue. It would in fact be very simple in my mind: Luke sets a blaze to the pyre, Vader's armor begins burning, close up of Luke's face, back to pyre which then pans left, we see Anakin's ghost appear and smile, back to Luke's close up where he looks emotional, then distant shot of Luke from behind with fire burning and Anakin simply standing there. Then the camera pans up to the fireworks. No dialogue, just emotion to communicate several possible feelings. I personally don't see the PT's explanation of Force ghosts as disrupting to Anakin appearing. I don't see a need to try to make it make any additional sense. The official explanation works for those who care, but in this case I'm mostly interested in a story-telling device, not the endless efforts to keep continuity perfect on the part of the Star Wars EU.
I had an additional shot to go with this, but it would probably be even harder: it'd be interesting to move this pyre scene to Tatooine, Anakin's and Luke's home planet, with a double sunset in the background. This may seem easier if we place the action in a valley of sorts so that when the camera pans up, that's when we see the sunset. Most of the scene is pretty dark, so if we darken it further to hide any foliage, we only would have to change the pan up. And even the lighting on this planet at the sunset could be darkened. It seems interesting to me to show one of the suns nearly set and the other approaching. Combined with the shot in the valley, it retains the twilight feel of the original shot and signals an ending of the story.
I want everyone interested in this project to really speak up on these thoughts, the Anakin ghost in particular. I should have the script uploaded today I think, so you can respond after reading it, but apparently this issue is keeping folks divided, and I really like it so much. Please speak up so I know if we should really keep it or not.
Rereading what you wrote, do you mean the dialogue when Vader dies aboard the Death Star? I don't have any plans for that either, so you should be relieved.