Why bring your promethium ship to Nauvis when you can bring Nauvis to your promethium ship?
By carefully putting a captive spawner inside of a dome, pressurizing it with thruster oxidizer and quenching the spawner's thirst with light oil, it is possible to generate a Nauvis-like environment to produce biter eggs right on a space platform, and the microgravity conditions double the egg production rate!
Conveniently, that same microgravity affecting the spawner's metabolism combined with the strong containment lets the spawner survive starvation, being parched or suffocation for 30 minutes, far longer than it usually would.

CREDITS:
Talandar for the cosmic scanner dome (used by snouz's Moshine)