OK, following the strats discussed in the forum, I managed to up relatively quickly and stop the Krush.
But it seems I was occupied with guarding my gold and didn't devote the necessary attention to my 3rd TC, so it fell relatively easy. It was downhill after that, added was my lack of good micro skills and the failed Rag.
It's a nice game to get some conclusions though, so observe and comment if you like.