Alright, I have them both working.
I have one that mounts the person to the object that is spawned by the brick, and one that mounts the object spawned by the brick to the player.
The second one is not compatible with vehicles, there's no way to mount a vehicle TO a player/aiplayer.
If you HAPPEN to get online in the next, oh, say, 10-15 minutes, I'm doing testing of them on my server.
nevermind, it's in use.
pm me on irc if you're actually interested.