Unoptimised build to gain 1/s Gravity matrix from usual materials produced on the second planet. (Or imported to home world and then produced) Fire ice can be substituted for general graphene production, though that would increase hydrogen requirement. May make a from complete raw black box build - however from just looking at the facility requirements of oil refineries alone I dont think its feasible/worth it! Mk2 Assemblers and proliferator have been used, however Mk3 of both would probably be appropriate - build coming soon!