Hmm... your choice on the attributes I suppose, but I'm more for INT and STR dump on this for power playing.
From the class tables,
Between:
Scout 4: nets you 1 more power (20 powers, 10 feats)
Scout 5: nets you 1 more feat (19 powers, 11 feats)
Scout 2 over 4, actually nets you 3 more powers trading off the Implant 2.
But seeing that you would be using Implants for choosing a scout, you might want to consider at least 4 so you can max it out. (Sorry, still have not checked out the exact items list for consideration into build yet.)
Going on this, as most feat trees are 3 levels high, Scout 4 rounds off Implant 3 with 3 more complete other feat trees.
Powers suggestions in no specific order...
1. Master Speed is pretty much default, although it actually does very little for the Consular. Would be interesting to drop this, but annoying to cross large maps. (3 slots for less annoyance!)
2. Droid whacking should always be an option for LS. (3 slots)
3. I prefer the Push tree over the LS Hold (the actual name eludes me right now) tree to cover non-droid disabling and usually have no reason to take both, but you have way too many slots to spend so you might just take both for fiats. (3 slots)
4. Countering active Force protections on your enemies a must! (2 slots)
5. Protecting against hostile Force powers desirable. (2 slots)
6. Force Storm would be expensive to cast, but way cool and useful for crowds! Or you could settle to
Waving everyone good-bye... (3 slots)
7. Throw your saber! It has fixed to level damage, but you really have little else to do with your saber anyway and power slots to spend; it's also cheaper than Storm for smaller crowds. (2 slots)
8. Choke! Well.. this only comes to mind when facing some boss fights really. The final scene would be pretty awesome, but I suppose we'll leave that for DS Consulars.... (0 slots?)
Erm.. well. 20 slots aren't all that much to own all force powers it seems.