Your wish is my command. Please find attached a modified buildinginfo which has a tleilaxu palace with +1 priest GPP and a zensufi shrine with one free priest instead of two. Also I changed the civilizationinfo file so that the tleilaxu palace is a UB for tleilaxu. Please unzip into your mods directory and start a new game, to see if it makes enough difference. You can probably tweak the XML for the two buildings if you want a small change from there.