I see where you are going on this and I agree that barb levels after 14 really only give a few HPs. A couple things to remember.
Barb rage stop CE
With the madstone boots, you can not drink the barkskin pot.
+4 insight shoud item does impact your DPS.
I like the idea of a barb with intim and you will learn when to use it or dieI do not think the DPS loss above hardly rates a 46 AC raged (55 - 5 CE loss - 4 rage)