i do it : buy 1. planet , spend all money in mining ( lvl9), set all ore/copper to autosell and sell all ore , buy planet 2 , do the same as for planet 1 (i reach lvl16 in mining instant but dont care for the number) buy planet 3(and do same as for planet 1) and then 4 (and do same as for planet 1). then stop autosell all ore and start smelting copper. now push shipspeed and cargo to 10 -16. start autoselling lead again till u have enough for the project, same for iron ore projects, after enough copper bars autosell copper and smelt iron ,then craft nails before smelting lead.
i do it : buy 1. planet , spend all money in mining ( lvl9), set all ore/copper to autosell and sell all ore , buy planet 2 , do the same as for planet 1 (i reach lvl16 in mining instant but dont care for the number) buy planet 3(and do same as for planet 1) and then 4 (and do same as for planet 1). then stop autosell all ore and start smelting copper. now push shipspeed and cargo to 10 -16. start autoselling lead again till u have enough for the project, same for iron ore projects, after enough copper bars autosell copper and smelt iron ,then craft nails before smelting lead.