Yeah, it would work, look at the underneath of your car. Can you see the flywheel through a hole in the chassis? That's what the hole is for, the starter box. I've never had a rotostart so I wouldn't know how easy it is to use, but honestly, using a starter box makes life easy. The only semi-bad thing you need to do is set the box up which isnt that hard.
It's mine: http://au.youtube.com/watch?v=usYhSWbmx6s