I would not recommend that approach. I've found that over the years projects I did with letraline or pantone tape or the like come apart after five years or so. Either changes in temperature or sunlight is probably the cause, but the stuff, while it goes down neatly, doesn't stick forever.
What you might try doing is masking the area, painting it with thick paint, and then final color coat over all. I do know from experience that final paint coats do not hide imperfections (intended in this case) very well!
You're right about the drawing resource. I've got a couple sheets each of the T2 and the Victory ships.