Thank
you for the compliment. Two other articles on the site that are at least peripherally relevant to this thread would be
Building a Ship's Financial Profile, for figuring out the actual costs and needed profit, and
Building a Commercial Atlas, for figuring out how likely that profit might be. Both are over my own byline. I haven't sat down and worked out either for either of the 150dt designs in this thread, but all the information you need is in the three articles...