Hey man, I recently finished my 99 Barb climb WITH Throw Barb and my own 55 chanter following me around

I did do Lacerator and Warshrike.
Belt - 8LL 15% DR String (Up'd) - More LL and helps counter the sund more
Warshrike gives your paid hand 50% pierce too, so you don't need the pierce on the belt.
Boots, I went with War Travs. They added 200min-300max damage. If your goal is to clear P8 96 TZ areas, they give much more damage. CB is only worth putting on if you're boss farming.
LoH is, of course, a no-brainer, good shit there.
The only other difference was I used a 3os 20 Fcr Hat. 2x 15ias/15 Max + Cham. (place cham at bottom ofc)
You want max damage over ED since the weapons are lower damage. The IAS helps with breakpoints.
You could buy a 10k Eth 40ias 440+ ED Ghost Glaive, which does shoot further (only really good for PVP imo)
But since you're doing chant and sund, I'd honestly just use the lacerator and WS. I did use both, and I didn't find any real difference.