First of all you should've asked me by private message. As for the error, it says you don't have correctly linked the bootstrapper.dll as a dependency for the solution, that's why it won't find RAGE's API.
Yes, you can add custom modded interiors or just map them and import the objects into your gamemode.
Also, it would be better if you avoid using other multiplayer mods' names on the title.
Ok, i can't see any error or code there, obviously there's nothing i can say about it.
Also that seems to be some kind of "private and paid modification" of WiredPlayers, don't know its code behind.