The build is fine, it will probably be very solid for normal and comfortable in hard.
They are a few issues I can see. First the details:
- You have too many points in Hacking, Lockpicking, Mechanic, Electronics, Tailoring, Temporal Manipulation. A few points in Traps never hurt when you have low PER to help detection.
- Persuasion is not great, mercantile is generally a better pick (and on higher difficulty mercantile is extremely good to have).
- Snooping is (sadly) useless in the long run, you can find every secret with 3 PER as long as you can craft certain items.
- I would take cheap shots and crit power as soon as possible, those impale crits amazing, especially on a STR spear build. They also both work with spear throw, and a crit spear throw is a death sentence.
- With that much Throwing, Three Pointer is a solid option, but you'd need to lower your STR to get one more DEX.
- 25 points in Psychokynesis to get force field is always the best investment possible. It feels a bit cheap to abuse it though...
Now another problem I see is: it is a melee build with low init, no stealth, high armor penalty and low base movement points. Enemies will often get first strike, and running after them will be annoying as hell. On top of that, you will also need to move to your thrown spears to pick them up. I'm not saying the build wont work, just that it will be awkward to play at times. Personally, I would go for a light armour and get some stealth, but that would be another build.
Hope that helps, I've played quite a bit of melee spear, but not much spear throw, so my input might not be fully accurate