I was thinking of making a mod similar to this, until I noticed this in your signature over on the TMI post. How would I adjust the settings to just take 50 Metal with 1 Heavy Machinery and 1 Fuel to create 5 Supplies, without taking market prices, ship bonuses or any values into account? That was what I was going to make, something super simple and clean, without fractions (I'm a bit OCD).
One suggestion: sound does not travel in space, therefore having your ship be easier to detect doesn't make much sense. You're not outputting a bunch of energy, either, as creation of supplies from metal using heavy machinery wouldn't require anything but bending and forging, etc. Manual labor. Supplies are supposed to be things you use to fix up your ship (in-universe roleplay, at least). That wouldn't be something that's dangerous, but rather necessary, where the danger lies in leaving unprepared or incapable.