Thinking about switching to HC and need some input from you all.

Would be a nova/es with the following gear:

Infinity
Griffon
Viper
Arach
Water walk
Soj
10fcr ring
Frostburn
20fcr amu

Merc:
Insight
Forti
Andy

Will hit 105% fcr, but worried it’s a glass cannon?
Maybe we eschuta/spirit is better?

Nova = up close and personal to attack

You're forgetting the most important thing about your build. Your shield...

In hc max block is essential to tanking and survival. I would recommend lightning instead of Nova, but if you're set on Nova that's fine too

Here is a very useful guide from one of the best hc players I used to play with
https://forums.d2jsp.org/topic.php?t=3402313

I build all my sorcs based off this guide. I personally recommend whistans shield or mosers bc of low str req and high block stats, but to each their own

doing 105 fcr maxblock es nova on hc and it blasts

Will it last: No matter how good gear you use, if you teleport carelessly and aggressively you will die sooner or later.

r.i.p.