[EasyRider]

Yes it will work ok like that,after you can create a shorcut to your ,exe in Flyer1.2 and then right click and select properties.Then look for the general tab. You can change the name of the shortcut to Flyer1,2,exe or whatever you want.Place new Flyer shortcut on desktop beside the stock install shorcut from new installation and you will have access to both modded and stock game.

Easy