Austria will have some temporary skins. For byzantine will be used skins from other mods, same with Hungarians (magyar mod). Serbia has already done about 40% of units, Bosnia 25%, so it is stared, and it is not necessary to use from other mods. Wallachia has 100% done skins, but some normal maps has to be done, so as correction of the models. Bulgaria will now be 100% done. So all it's left are Serbia and Bosnia, with kings, queens, tsars, generals etc. to be done for every faction (it is quite easy, one model, only other textures). so as you see, beta can be expected for about 2-3 months, but it depends of il_duce, cause he's not currently working on mod. in later versions there will be added Austrian units, Milanese etc...If it is fully playable as you say, than you should release beta version first or 1.0 version, so we can play it and fix major issues. You models are beautiful but it is not crucial for success and playability of the game. You can add more and better looking units in new patches. For missing units you can take models from other mods for starter. For Byzantines, Ottomans, Hungarians, Austria (HRE), French there are loads of units around in all mods. Also for Bulgaria, there are Bulgarians here, so they can ask moders from Bulgaria mod. For Serbia/Bosnia and Walachia/Moldavia I am very friendly with Sicilian Vesper, so he will give his units until you finish everything (Also there are all other factions in his mod, so we can use others too).

