I was looking for a similar mod for myself, but did not find it. Standard buses with the only difference being that they have a visible interior. The archive also has an option for XBOX.
Installation: replace files from the archive in gta3.img
For the glass breaking effect of Coach, you need to replace the collision from the archive in vehicles.col
Of the minuses: I could not get the visibility setting for the driver behind the wheel (for Coach) If someone knows, write in the comments or in a personal.