I found a link for fairly cheap ($15 bucks per sheet) reproductions of ships that served in the RNZN, and some other RN ships. Among them are HMS Sheffield. I beleive these are reproductions of the original builders' plans. http://www.navymuseum.mil.nz/shop/charts/ship-plans.htm
Bad news, folks. Those HMS Sheffield plans, though good plans, are not original builders plans. Those are the plans drawn by the late Norman Ough. I know because I own a full three sheet set of these plans. The RNZN Museum only has two of the three sheets to this plan set. The third sheet (that they don't have) is a small sheet with details of the ship's crane and the ship's boats. Hopefully the other plans are real builders plans, but I would contact them and make sure before paying them to copy and ship them to you. Now the truth is, for 1/144 scale combat, the Ough plans are worth the $15 for each sheet, but I just want you guys to know what you're buying... Carl
