Personally I would not even consider a remote starter.  In order for it to
work you would have to leave the car in neutral with parking brake
engaged.  Without pressing the clutch, the starter would also need to
churn the stiff transmission fluid (did you ever notice your car lurch
forward when you initially let the clutch out in neutral in cold weather).  
And if your parking brake cable freezes up (or seizes for any other
reason) you will be lucky if it releases.  Of course you would not want to
start it in a closed garage.

The cooling system of that engine is compartmentalized to warm up
relatively quickly while driving (which would pollute less than cold
idling).

In order to do it you would have to disable the failsafe mechanism on
the clutch pedal. If you turn the key to start the car WITHOUT pressing
the clutch pedal,  absolutely nothing happens. I believe it's a button
that actuated from the clutch pedal itself.
CD