Sorry, I do not know how to help. Just no idea now, try to dig the forum.
Once I had very similar problem - whatever I flashed I was stuck at bootlogo. And in my case I found out that just before flash my internal memory had been filled with some mess, which was not removed by any wipes (cache, dalvik cache, cache partition) and after any flash memory was too filled to start the system.
But finally I could flash Chinese eclair (CG5), which at last started horribly laggy, and I could wipe private data from a system - it gave me more than 1GB of internal memory back (from 40MB after all wipes and clean system install) and a way to flash whatever I wanted without a problem.
So even if it is also your problem, my way is not available to you now. Maybe you can find as small sbf file as possible and try then.
PLK on LG9 - and my reborn defy
; lovely atrix is gone