I hope you don't mind me doing this Jack, but this is what i would do...I am no means the worlds best aquascaper BTW!
the blue is where you're golden rule sits, the green is where i would put the blue coloured 'V'.
people reading this, must recognise that Jack is working with a really small tank, and it's really difficult to scape a tank this size.
I went on a Garden Centre Trawl this afternoon looking for the plants I want, the Pogostemon helferi is coming from a member on here, out of the 5 places I went one place had Staurogyne repens, just one pot mind and the tank was off sale due to treatment, just my #41#### luck.
I got a pot of C.wendtii for £3 so not bad at all from Trowell.