Botania allows the ignition of blocks using Mana Bursts shot through the Mana Lens: Kindle - (code).

This would allow for long-range automation of campfire through Hopperhocks, Rannucarpus and redstone.

Such a setup can already be achieved via dispensers but it would make for fine-looking contraption, especially in regards to the regen effect some campfires can provide (useful when setting up a Gaia Arena).

Added in v1.8.3
Mana bursts from kindle lenses light campfires.

I have got to respect your dedication to this project. Albeit small, the attention to detail is astonishing.