Looks like I’m set to run B4 – The Lost City starting this friday. I’m revisiting my old homebrew B/X classes in case someone would like to play test them.
I don’t know that the Abbey Monk will be particularly effective in the desert as he won’t be able to take advantage of his herblore, but I think that the Prodigal Apprentice class is worth presenting as an option.
I’ve made a 1 page PDF that can be downloaded here. Note that this class is meant for use with Holmes basic or B/X groups that use Holmes’ or 1e AD&D’s magic system.