I'm blanking here. You want me to get rid of Mobility and Spring attack, yet keep Whirlwind Attack.
Whirlwind Attack REQUIRES Mobility AND Spring Attack. I'm sure I'd love to take the feats you have mentioned, but I think it will have to come later.
Oops, my bad. In that case, following Tarrasque's advice would probably be best, I had forgotten about Imp. Natural Attack...I'd suggest the following:
-Dodge, replace it with Improved Natural Attack.
-Combat Reflexes, replace it with Monastic Training(Psychic Warrior), which can be taken as a Monk bonus feat.
-Mobility, replace it with Talashatora.
-Combat Expertise, replace it with Overchannel.
-Spring Attack, replace it with Class Training (Flurry of Blows), so you gain Greater Flurry and a delicious 3rd attack.
-Whirlwind Attack, replace it with Practiced Manifester.
-Skin of the Construct, keep it, I just read the feat and it is awesome just for the sheer flexibility of options you have.
You can still get a semi-Spring Attack-like ability with Hustle, or seriously ruin somebody's day with a Psionic Lion's Charge Greater Flurry, or get really big and hit someone really, really hard with augmented Expansion.
You don't have to 'uber' your character, but as it is, you'll have an extremely hard time actually contributing to combat - which, if we're in a military unit, will likely come up frequently. If you're fine with that possibility, leave your sheet exactly as it is now, but there's a lot of room for improvement without even touching the real cheese. Spending 5 feats to get Whirlwind Attack is just squandering feat slots, and can easily be replicated by gaining Greater Flurry and getting bigger via Expansion, without weakening the character concept at all.