I didn't realise it as a complete project yet, some part of it was included in MEDM mod.
The deal with CTD on reinforcements was in labelling errors, both you and Germanicus mod did it without counting units in army, and I've found a way to count them.
I'm finishing working on siege part and I suppose to release it. Or at least I can PM you later this week.
I'm making an AAR for test campaign in my Westeros sub mod on our local forum - I'm testing both CAI and BAI of my TrueGeneral AI project.