Assistance merging two features of FfH2 into HoTK- Help needed

Earlier I posted a thread similar to this one, requesting aid merging several HoTK features controlled by python and SDK into FFH2, which would form the base of a modmod. However, after working with the mod's XML, I've realized that the HoTK base code is much easier to work with and more in line with my mod's core idea. (mod thread here: http://forums.civfanatics.com/showthread.php?p=12021612)

However, there are several fantasy concepts I'd like to include in my mod from FfH2, concepts controlled by python or SDK, neither of which I have much experience modding and, in the case of SDK and the core dll I am incapable of doing so.

I'd like assistance merging in two (and possibly, another, smaller bit of code) concepts of FfH2 into HoTK's core code:

1). The code that makes the Mercurians and Infernals summonable, as I plan to include two summonable civs in the mod.
2). The World Spell mechanic, including all of the World Spells from FfH2. The World Spells themselves will remain unchanged, but will be for new civilizations.


3). (possibly) I'm not sure if any SDK/python code controls the Assassin unit, which always attacks the most wounded unit in a stack, but if so I'd like that code modded in as well.

Once this is finished I can get seriously working on the XML.

Assistance is much appreciated!