With the introduction of the Meteorological Lab to build weather items, why not introduce an Aerospace Laboratory that allows us to build launch items? You can build small fuel tanks, large fuel tanks, main stabilizers, and powerful explosive bolts as need be, but you would use the common items to do so. I say to do the following:
1 small fuel tank = 100 solid fuel rods
1 large fuel tank = 300 solid fuel rods
1 main stabilizer = 100 additional stabilizers
1 powerful explosive bolt = 100 explosive bolts + 200 solid fuel rods + 100 additional stabilizers
Would be a great idea to use up the reserves of common launch items. Of course, with these rules the 100 item limit would need to be lifted as well.
1 small fuel tank = 100 solid fuel rods
1 large fuel tank = 300 solid fuel rods
1 main stabilizer = 100 additional stabilizers
1 powerful explosive bolt = 100 explosive bolts + 200 solid fuel rods + 100 additional stabilizers
Would be a great idea to use up the reserves of common launch items. Of course, with these rules the 100 item limit would need to be lifted as well.