I vote for 2 civs since this will be an add-on or 2.
I haven't started doing anything, Hian?
Woodelf, all,
In fact, i prefer mine.

But as it is an add-on, both can be made. The question is: one or two patches ?
I haven't started. I'm busy, but i can find time to do a few XML code. Nevertheless, before starting anything, we should all agree on what is common to both civs, what is the base of work, bla bla. As i have a very few free time, i don't want to waste it.
Below, a few questions still without answer:
- Palace: same as "common" palace, but what are the three bonuses ? Personnaly, i ask for Earth (logical as linked to an earth dragon), Body (Lizardmen are a strong race) and maybe nature.
- NU(s): what are they ? In my version, there are two NUs. One is a bow pipe (right word in english ?

) to replace the longbowman and the other is either a ranger or beatsmaster (logical if you read their history). This last one should be as usual but with an other bonus: +25% vs Beasts.
- UB: At least one in my version. It will be the "Temple of the Worm" to replace the Pagan Temple. Do you have a better idea or something to add ?
- Art files: where are they ? Are they ready ? Do we have all that is needed (palace, temple, units,...) ?
- I'm a XML coder in my Team, not program coder. All that need some changes in SDK or Python is simply like walking on the water... so impossible.

Creating the patch by itself is also not my job in my team actually. We usually share the job among us depending on our knowledge and capacities. (time also).
- Leaders: what about the leaders ? In my version, there are two, maybe three. One will be "Mother Ss'aha" spiritual/Summoner/Agnostic and the other "Tek'la", a war leader, Defender/Charismatic/Agnostic.
- Pedia: As you know and can read, my english isn't as good as yours. Somebody must take this part of job. Or i can do it in french !
- ....
All that need to be answered.
IMO, there is no hurry. We must agree on something before starting. Then i will do my part of job. Adding a building or two, a few units, .... some XML code is not so long if you take care.
Woodelf, as FfH structure is very different from my mod, which still runs under Warlords , i have to study a bit the changes. I will also ask for your light in case of.
I will have a few days of holidays around the second half of february. Maybe i will find time to do a few codes.
Hian the Frog.