Usually need to find a friendly psion with psychic reformation, or other DM fiat methods, but yes retraining is in.
If it's okay, I was now thinking of going with Human (for the extra feat), and then re-training one feat into
Extra Trick, which I don't qualify for until 3rd level.
In which case, his feats/trick shots would be something like this:
Feats:
Imp Init
Alert Reaction (combat reflexes keyed on Wis)
Extra Trick
Extra Trick
Trick Shots:
Whites of Their Eyes (threaten normal reach with ranged weapon)
Double Jeopardy (threaten smaller of 1 range increment or 30', plus squares of anyone I hit in the last round)
Distracting Attack (anyone I hit is considered to be flanked for the next round)