I do suggest the general concept of shipyards, this implementations is among the worst I\'ve seen. It\'s simplistic, has no time-consumption or delay of any kind, and worst of all, does not get rid of the worst issue with blueprints, that of directly converting credits to items, regardless of what rescources you otherwise have access to.
If this is to be done properly, it should only require energy, plus replacement blocks for those that are completely destroyed. Furthermore, ít needs to be done over time, preferably block-by-block, in order to avoid undesireable effects on combat stratergy. I\'m not sure how you suppose a yard like this is supposed to be constructed, so I\'ll leave that out