I do not know if everyone is aware of this plan service. No they are a plan service. Go to Yahoo search and Maryland Silver Company For those who can put it in this discussion please do so. They have sailing ship,Civil Warship,and other plans one might be interested in. I put this on my Civil Warship thread but I am sure al;ot of people will miss this.
I ordered a few ship drawings from The Maryland Silver Company this past December - 2017. The drawings are copies of US archives and vary in scale. So plan on doing a bit of rescaling to create useful drawings. They are good about responding to emails. I recommend them for hard to find US ships. http://www.marylandsilver.com/
I tried to access the Maryland Silver Co. website. It is no longer in service. I emailed the owner - no response. Hopefully another plan service will acquire their documents and sell copies.
Maybe the new owner of the floating drydock will get them. Would be worth it to reach out to him to see if that is in the plans.