making maps for this mod is extremely tedious, and even then the collision is extremely buggy. The best way you could support this mod is to make a map, but you have to understand that for collision to work it requires thousands of convex shapes intricately placed at every point on the map that you don't want the player to go through. I've tried making the kitchen for this, and gave up after realising it would take many whole days to complete it due to how complex the map is. The dif file didn't export as well as the bedroom did, and so the textures were completely forgeted as well.
I don't think people understand that you can't just press a button on a map to static map converter and have it work. Making a map would require days of tedious work, all for it to turn out that vehicles fall through the map because the collision is buggy.
If someone handed me a properly textured blend file for the kitchen I'd give another go at it