How much would you change or update a build to make it HC viable ?

So with the changes to HC im looking at starting HC and then if I die just continuing in normal SC, but with the same build.

I have played HC before but now looking to convert one of my favorite builds to HC. I'm looking to go srs necromancer.

The thing is im trying to work out how much dmg and QOL to cut compared to defence im getting.

For example i could go full defence with

• capped block
• life / es on block
• 6k hp
• ghost dance over leech tech
• determ + flesh and stone + artic armour
• 100% spell suppression

But then my damage is lacking, so im wondering what is the normal benchmark for getting a build your happy with for HC while still keeping enough damage ?