The Rifle Shoppe sells plans (not detailed blueprints) of their Ferguson to assist in assembling their parts set which consists of castings of original parts. The others are not available. The "blueprints" from the period do not exist and never did in the modern sense. If you are looking for the detailed blueprints in making the modern factory versions of the above breech-loading carbines (some of the ones you mention have never been built other than maybe a one off by a skilled machinist) then they are not available unless you can get an agreement from the manufacturers to buy their spec drawings. They will be very expensive and I doubt seriously that they would even consider selling proprietary property that they spent a small fortune developing much less give it away.
The best bet will be for you to buy an original and create your own drawings, that will be less frustrating and certainly less expensive than trying to get someone else's work.
Young Surplus Nut, have you by any chance posted a similar question on another board?
The best bet will be for you to buy an original and create your own drawings, that will be less frustrating and certainly less expensive than trying to get someone else's work.
Young Surplus Nut, have you by any chance posted a similar question on another board?