If you don’t want to relevel HC characters from 1-70 after getting killed the only options you have is don’t die or go SC
SC does everything you want with the added bonus of keeping all your gear
The whole point of HC is to start from level 1 when you die, if you want to short circuit that to stay at 70 once you die it’s called SC
Don’t care if you don’t like running from lvl 1- 70 after death in HC if you don’t like it that’s what SC is for