Andy, a good source of line drawings in "theblueprints" website..or something similar (unable to look it up just now) loads of 1 2 or 3 view drawings. free to register for better reolution of the prints.
(it`s what i use for my models—but dont tel anyone) you can print them out and have them enlarged to the size you want at a print shop, easy source of plans for simpler models.
Ashley