Gentlemen, I thank you all for your responses, it's what the site is all about!! TCC, "yip" I did see the image, I've seen it before, but a lot smaller, and now that I know that the 'long thing' is a row of taps, it stops me from wondering!! It is represented on the model I believe, but obviously not in such detail!. I did model a 'drinking well and tap' on my 'Amati TITANIC', that's an even smaller 1/250th scale! I made the well out of a bit of plastic sprue and the tap was a bent piece of copper wire of a miniscule nature, and between the two, look the part!! Using a ruler would be impossibly hard (I think)as these brass parts have doors, vents, vent covers etc etc as pronounced etchings.
I found out 'accidentally' that the CD/DVD pen was infact 'double sided', so, if the finer tip is used to first draw in the 'top line', the 'bottom line' can be filled in by using the 'fine' liner again, or the other 'fatter' end. I'm thinking that your paper idea is really good, glued on with craft glue and then varnished might work, but would the overall varnishing maybe 'crimple' the paper as it does with transfers??..."HMM??"
Colin, I've seen that'Trim Line' tape used before as the 'gold band' on the above TITANIC, personally if I had thought of it I would have gone for the TRANSFER, you can get some sort of 'sealer' that moulds the thing over individual detail parts, ie, rivets, so it may have did the same with the doors and vents on the brass as I've mentioned above, but I've noted 'Trim line' into my diary for any future projects that I attempt!!
Ian M, the 'TAMIYA' paint pen was my FIRST thought as it was ideal, and avail in D'Grey!! I had purchased 2 from E Bay and used them for doing the exact same thing on my 1/350th TAMIYA Battleship Missouri with great success, and No GUIDES!! (a couple of BOY SCOUTS had to do!!) I could'nt find anymore on E Bay, nor did my local model shop stock them, so 'the pen' was it!!!..".Bobs yer uncle!!"....thanks everybody for the info, all noted!!.............Dave.