Well now... This is a good point and makes me want to expand my horizons! I don't normally do this so...
Username: Nyowpotopop
Samples: http://s1002.photobucket.com/albums/af146/NyowGallery/
I actually have zero mecha samples and have only done them once or twice ever. I'd love to give it a shot though.
Prices: My most recent one (pug in clothes) was 150K. You CAN expect lines, colors and shading to be of that quality and a small background... So for a humanoid figure probably more if I don't ruin it.
Maybe 175K minimum and you can add to it if you like it.
razz
Character I'll Draw: I'd me most interested in Rabbit but I am willing to do any of them EXCEPT two-step.
Timeframe: Depends on my crazy RL schedule... Because RL and RL commisions always come first. Most time I've taken on a picture is one month.