It has more applicability than Intimidate but to be honest, majority of time you're doing killing and looting in UR even with Persuade/Intimidate.For my 8th skill should I go for persuasion or biology? How much content does persuasion unlock
Still I'd probably take that instead of Biology, I think that crafting skill really got short end of the stick compared to every single other one. It's also dull, requires many ingredients and using a fishing rod. By the midgame you swim in medicaments. I did without regenerative vest too, although some points might have use for using natural components in Tailoring.
Maybe if psi didn't regenerate, like nanites in Deus Ex, it would be a must skill.
INT 4 is not a big deal if you put every point into it later. By level 12 you'll have 7 INT and that's the time when most of crafting begins to happen (you get access to multiple cities and lots of money). You just have to plan accordingly.
If you want grenades then yes, having Chemistry at 70 would be useful, as well as an extra point of dex and Grenadier feat (but that needs 6 DEX).
Perception is nice but you can take 1-2 points from it and start at ~8, level it up later. What's more important is having good gun and night vision device to counter darkness penalty.
Also, even for heavy armor I'd take 6-7 AGI to get Sprint/Hit&Run since it's important to have good mobility to get close and personal for highest chance to hit with Burst.
I'd go with something like: STR 8, DEX 4, AGI 6, CON 7, PER 8, WL 3, INT 4. INT 4 > 6-7, a point in AGI maybe if you want perk and rest PER.
You could also switch AGI for DEX and get it to 7 for Quick Tinkering to completely protect yourself from annoying melees and wear tabi boots.
Thinking about it, I wonder why people actually want using AR and heavy armor, since it seems to me it's such a limited build compared to just wearing kevlar coat and using good shield, and having high DEX, high AGI instead and ability to kite anything and use shitton of grenades and traps like I did on my first playthrough (7 points in both would give you Grenadier, Quick Tinkering & Sprint and Hit&Run). It's not like heavy armor would protect you from psionic bombardment.