G'day Grunt
Remember to always check before you chop, anyway the wing blisters were actually introduced with the G3, one model before what I remembered, I went and checked.
The G2 pictured Black 6 was reportedly captured by Australian troops just a little trivia.
Now if what you are referring to as nose art is the Brown "RLM 26 " Rotring (oil) triangles, well I have already created these as they were used on my Stuka decal sheets (even though mine are a little more a red than brown due to the printer output) and I'd expect that they would be the same as those used on the Bf109 the Oxygen stencil for example should also be simular if not the same.
Heres a quick 10 minute stencil example I put together, all except the electrical inlet are artwork from the existing Stuka sheet.
Let me know if this is what you are talking about.
As I'm going to be the owner of a Bf109G6 soon myself, I am contemplating working up some decals and stencils for this aircraft, however I still have to complete some F16 decals first and may also be working on some custom Avenger decals soon fore FieroDude.