Background
I'm a bit new to Tekkit, but have done my research on this question..
I don't feel comfortable building large/complex things without being able to save what I have built to a schematic. I have made a habit of using WorldDownloader to save my online worlds just for the sole purpose of then grabbing the plans of what I have built.
I've been unable, so far, to find a solution.
My Question
How can I grab schematics from a Tekkit server?
Things I Have Tried
I've found a fork of World Downloader that is made for use with Forge, but have tried using them with Modloader and by altering the Minecraft.jar, with only crashes happening. I don't understand enough about how Technic Pack/Tekkit are modded.
World Downloader (forge compatible) mod: https://github.com/balr0g/WorldDownloader/downloads