Stem is super easy. UNO Ultra-lite. Tuned with Ti bolts, they come in at 96g ish for that length and they cost penuts (like $20 on ebay). Care....there are 2 versions 1 lite, one not so lite.
Bars: there are many. kestrels (only one of their variants are light...can't remember which one tho), Easton EC90 variants (there are 3 variations in shape) are both under 200g. Syntace Racelites are about 200g Ritchey WCS are nice and strong and about 220g???????
awesome.. Thanks for the tip.. I'll check on ebay for those type.