That kind of marking is not too difficult to scratch with inkjet decals. Look through the decal forum below for threads on inkjet decals. You need to determine the font of the numbers, and match the closest you have on the computer. For the plimsoll marks and such, I'll bet you can find graphics on Google Images. Just make sure you change color as necessary, and then scale them appropriately. I always make multiple copies of each marking I make for a project, at least two, maybe more if it is a complex marking.
You should be able to make the scales with lines, turn on grid and scales along the graphics screen.