Yeah as I said “Editing Post for new Stuff” is a very very bad Idea, because nobody will ever pay attention to it as it sinks further and further into the older Posts. Heck, I even forgot it existed until you made this Post.
Scaffolding: Yeah the climbable Part might be a bit tricky, need to look into whatever hack IC2 did one day.
Candles: Yeah I made Forestry and Pams Harvestcraft Candles doable already. No need to spam even more I think, but its a “maybe”
Plastics: Very much yes, better Process is planned, and the Distillation Tower only has a Plastic shortcut inside its Recipes, that would be removed once the real processing happens. But I wont make it as cumbersome as GT5U has it, that one was just horror.