Repost from /r/pathofexile looking for advise or critique of Sunder Berserker build

I started PoE in the middle of Legacy. I followed guides for a pizza stix build and a firestorm elementalist and had a blast. For Harbinger, I followed a SRS guide and fell into the BaronSRS trap, but eventually scraped enough currency together for that overpriced helm. This char is now 92 and doing quite well.

Leveling 90+ is quite the grind but still fun for me. I wanted to make another char for lab farming and didn't require a bunch of $$$ and I found this Bleed Sunder Gladiator guide: https://www.pathofexile.com/forum/view-thread/1960993 I like it because I dont need any 6L, the damage seems nice, and the uniques are cheap. What I don't like is the low, low HP. I'm sure a better player would be OK with 3.3HP in lab, but I am not Mathil. Here is my PoB pastebin with gear for the Bleed Sunder Gladiator: https://pastebin.com/pTPWXPj4

I don't see where I could add any substantive amount of HP with some gg gear. I would really need to add 1k HP or more to feel comfortable in uber lab. So I took a stab at creating (stealing) my own build using this as a base; I want to use the same gear/gems but with Marauder that has easier access to that sexy life wheel.

Here is what I came up with using the same gear on a Berserker: https://pastebin.com/GB4jR2z4

The Glad is only lvl 77 but I theorycrafted the Berserker up to lvl 85. At lvl 85 I think I could only add about 300-400 HP with the Glad but the Berserker would have 1k more life and probably higher DPS than the Glad at the same level. Plus 2 more jewel sockets, 20% phys reduction, and some extra move speed. I lose 100% change to cause bleeding and those disturbingly satisfying blood explosions.

So what do you think? Should I just git gud with Glad or is this Berzerker build good for uber lab farming?