~~I don't believe it's possible~~. As far as I can tell, you're very limited in how much you can scale up on any planet until you've gotten research from all the others. 300k scrap should get you about 3k science, plus you can mine those pink plants for holmium ore. That should be more than enough for your first visit.

Correction: Elevated rails can be researched before you ever leave Nauvis. That should allow you to transport scrap between islands.