Well, you addressed the stuff about blade sentinel and blade shield but back to infinity setup. I don’t base a char around immunities against its main damage source, in this case, physical damage because it’s ineffective in the long run. I rather amplify the main damage source and find ways to deal with immunes or skip them.
I don’t wear guilliamo’s with an edeath ettin axe. There is more than enough DS and CB from the runeword, gores and possibly highlord’s. I usually have lawbringer or azurewrath on switch for physical immunes because most of them are undeads. Regular monsters die to blade fury+ blade sentinel +infinity without the need of decrepify or amplify dmg. I concentrate on +skills to all, dmg resistance and all res. My prefered helmet is an umed shako for blade fury 
I even tried an alternative setup with my PVP CoA helmet which had 2x 15ias/100ar jewels in it. All of the equip was no different to a kicksin with the exception that trap skillers increase the damage so I usually played a hybrid but that was before patch 2.4.
20 points into BF/BS/B Sentinel
around 10 hard points into dtalon
1p dragon flight
Rest into death sentry for increased radius
Lawbringer on switch for immunes
Upped gores for better kick damage
BoS for mobility and max kick speed
Infinity merc
I never had an issue with any monster the game. Death ettin is also interesting with dtalon due to casting glacial spike on attack which freezes all non cold immunes in sticky situation.
Edit:
If you stay ranged, lava gouts are superb gloves to have on. That was my build:
https://d2.maxroll.gg/d2planner/nm02068a