Well some time ago I was looking to get an upmarket Viper alarm installed, and I was told that remote engine start is a big job by the Autobarn people. I could have been misinformed.
You'd probably replace the Dominator key fob :( with the one from the new alarm, but it's good that the motors are already installed...
Jack Travis, E-Series Acting President
1989 Ford Fairmont Ghia turbo/GL replica (underway)
1994 Eunos 800M
1990 Ford Laser S