litecoin here we come
Actually, go ahead and try that. Set up a few bitcoin mining nodes with the source code change you are suggesting (rejecting all transactions that don't contain a 0.89% transaction fee) and watch the rest of the Bitcoin network route right around you. More for the rest of us... LULZ.
PS, backed with 150 TH BFL ASIC
Well if you are financing that much THash mining capacity you would be monopolizing all/most block rewards anyway. Still that might not be enough and you'd need the 0.89% fee or greater just to pay for it. Good luck with that wet dream! :-P