You know, you could also go for the slayer prc. Although the version in the 3.5 psionics handbook is much more balanced than the version in the srd since you are diluting it with some fighter levels it should be all right overall.
Fighter2/psion(shaper)4/SlayerX
Pick an interesting favored class that works with your character story (maybe even other constructs? construct hunter!) and have fun with it
I would've suggested Ranger2/psion(shaper)4/Slayer X but you already have the level of fighter so...
When you max out your slayer and have this: Fighter2/psion4/slayer10
with:
HD: 2d10 + 4d4 + 10d8 = 70.5 avg, not too shabby
BAB: +14, pretty nice!
Skills: 10 + 5x int mod fighter skills, 8 + 4x int mod psion skills, 40 + 10x int mod slayer skills
Powers: Manifest as a 13th level psion (mmm.. 7th level astral constructs as helper buddies)
And a lot of random abilities tossed in (psicrystal would again be a good feat to pick up).
You can even pick up Form of Doom at 15th level! (with a feat of course)
Maybe that will help
Fighter2/psion(shaper)4/SlayerX
Pick an interesting favored class that works with your character story (maybe even other constructs? construct hunter!) and have fun with it

I would've suggested Ranger2/psion(shaper)4/Slayer X but you already have the level of fighter so...
When you max out your slayer and have this: Fighter2/psion4/slayer10
with:
HD: 2d10 + 4d4 + 10d8 = 70.5 avg, not too shabby
BAB: +14, pretty nice!
Skills: 10 + 5x int mod fighter skills, 8 + 4x int mod psion skills, 40 + 10x int mod slayer skills
Powers: Manifest as a 13th level psion (mmm.. 7th level astral constructs as helper buddies)
And a lot of random abilities tossed in (psicrystal would again be a good feat to pick up).
You can even pick up Form of Doom at 15th level! (with a feat of course)
Maybe that will help
