Possible To Have To Copies Installed?

Reason being, I have the SH4 Galopping Ghost full mod installed. I was wondering, under my same "G" game partition to install the vanilla version also and tweek it outside of ome of the perimeters of Galloping Ghost such as the external view, etc. that the Galloping Ghost mod won't allow you to do...or will there be conflicts?

I love the 100% realism of Galloping Ghost, but sometimes like to just watch the outside eye candy too at times.

Thanks!