I'd still like to see some mounting pics of either the Chevy mirrors or the dodge mirrors. Like how you get the nuts on the backside of the mirror mounting studs, etc.
I personally think the dodge mirrors flipped out on a SRW truck look just like they do on the dodges. But the look really good on the DRW, dodge or OBS. The Chevy mirrors look pretty good as well, but don't know how well they flow with the OBS lines. Look a little too bulky but could be wrong. They also look like they take a larger mounting plate and create more of a blindspot than the dodge mount. Like I said, more (pre-finished) pics would help alot of people's questions.
If I had the money to pickup some dodge mirrors and had a set of doors to build the mounts on, then I'd get specs to everyone as well as some subtle changes to the mounting plate to better flow with the door lines.