Frist of all, I just want to congratulate you on how much you have figured out and how well you are doing with your touchy eater!!!! That is so great that you are so committed to this.
DD was also a MSPI baby, although I didn't really notice reactions to everything else, so it was a little easier for me to follow the diet. But just a couple things--first, the Alimentum is REALLY expensive (part of why I was so determined to not have to switch to formula) and the bfing got so much easier as time went on (I feel like this was actually one of the huge benefits! we both loved those times of day--it was so much more relaxing than the first 6 months or so). Around 14 months, dd had pretty much outgrown her food issues. We also have no food allergies in our families, so we were always pretty sure this was a temporary thing.
Also, the comment about not losing your milk if you drop to two feeds--many women don't, but some do, so if you absolutely are not ready to wean, I'd be cautious about cutting back that much. When we dropped down to 2 feeds around 14 months, I pretty much dried up and ended up stopping at that point. I wasn't really dissappointed because we'd made it past a year which was my main goal, but I think next time, I'll be a little more wary about cutting out all the other feeds until I'm sure we're ready for that.
~Kim