#1: Why do vessels that cannot enter atmosphere and have no landing ability (ie, Tabder, Neutron) require the use of rockivory in their production, as rockivory is for anti-grav units?
#2: Varmigio and Durelium are both needed for hyperdrive. Is this only a redundancy issue or are they compounds that contextually would need to be combined in order to produce the results needed for hyperdrive technology?
#1: The Tabder (for example) requires less than three times the amount of RockIvory the smallest freighter does. After doing some research, which required only minimal effort, I found that antigrav technology can be used in space, but only around a planet, and presumably to help maintain a stable orbit.
“Repulsorlifts only worked within a gravity well, as the technology required mass to push against. For a typical habitable planet such as Alderaan, "antigrav range" was approximately six planetary diameters, or around seventy-five thousand kilometers. Repulsorlifts used minimal power and were reliable enough to be utilized continuously.
- Wookieepedia - Repulsorlift ”
#2: Hyperdrive technology is very complicated. I don't think it would be too much to assume it's worthy of two material sources for production.
I can see where the orbiting issue can make sense, but then again sublight engines should provide all the thrust necessary to set an orbit - after all that's what NASA does without anti-grav units. But okay.
Secondly, that's what I assumed but I only thought to ask because everything else in the economy seems to be over-simplified ;)
You will find that all ships include the RM costs for all the escape pods they have on board. Since escape pods land on a planet, they have repulsors, and so add rock ivory to the total ships RM requirements.