sorry got no photos of either but i can get them, if i amreading this right you cant get the alco lock up or down because the spare gets in the way.
my adjustable tow bar is in the lowest position poss & all i do is open the back door and i can lock on or off & just drop the jockey wheel down out of the way.
Maybe your spare is larger than the one i have, but icant see how this would stop you operating your alco lever