Making a Pyro Tank, Vit or END?

Hey all, I'm making a Steel Set Pyro Tank, I have my Attunement at 23 (Six slots), and my STR at thirty (Great Sheilds). I should now put more points into Vit and End, but which should I prioritize?

I'm playing with my brother, who is a Int Dex build, and I'm trying to be the wall to his artillery, so to speak.

if you wana tank then 40 end is more than enough if you dont care about mobility at all, the rest dump in vit.

Pump endurance until you can get the poise you want, then dump the rest into vitality.

Pyromancer's don't use stamina, so focus on Vit. +10 style points if you become a stuper tank with >100% equipment load