How hard would it be to restore just the part of recipe crafting that worked with golems? We already have the dialogue that permits purchase of spells, spell materials, crafting materials, and, for those who qualify, epic spell books. Couldn't an option be added for those with the "Craft Construct" feat to buy "golem kits" such as used to be sold in the epic spell lab ? Forgive my ignorance of the scripting process, but it seems as if the general structure for such a thing already exists, as well as scripts for either the old golem kits from the spell lab or golem recipes from recipe crafting.
The ability to create golems, while not essential to game play, would certainly be a fun addition, and fully consistent with role-playing a spellcaster who specialized in crafting.