phi_
... and let the Earth be silent after ye.
1) Been using only Dvorak simplified for years now ... I think 2004-ish. I highly recommend it. Seems to limit finger reaching considerably; anecdotal, I know, so YMMV.
2) My favorite mod.
3) Never really considered this, but the left Control key is my default Control key. :p
If I had more control over what keyboard I use / who uses my keyboard, I would probably have switched layout to Dvorak a long time ago. I hope it works out for you.
i used to touch type dvorak really well for quite a while. eventually i switched back to qwerty, as i needed to use random computer labs. since then (2005), i haven't relearned to touch type.