Hi Scott, these are the markers I used with a spare fin that I experimented on. I made it to do it in a white and silver scheme but changed my mind - they may only be available in the UK, I don't know where you are based.
The 'niceday' marker was almost dry so used it mostly for shading the exhaust end of the engine -black
The next one down only is only named 'Permanent Marker' plus 'Lasting' and 'made in China' - black
Next is the 'Easirite99' with Malaysia EK-99 on the back - black
Next is a 'Pitt' artists pen, more of a brush nibbed marker which hardly seemed to dry but I could 'fudge' the black and blue markers with it, the fluid did not mix with the spirit bases of the other markers, I happended to have so tried it! - grey
Last is the 'Scipt' pen that I did the sky reflections on the top of the engines with - blue
Here are two of my friend Pete Sanders' models of the Bill Dean Vulture and his own version of the VC10, Pete's Vulture inspired my Stratojet which in turn inspired Pete's VC10. Plus a plan from Aeromodeller of a catjet Stratojet of the same size which could easily by adapted to Rapier power.