Going to quickly point you in the direction of (my) No.33's thread here:
http://www.dakkadakka.com/dakkaforum/posts/list/514448.page which gives an example list at the end.
But, It is very similar to the way you are going, so i would say stick with it!
Note the Celestial Guard Khang Shi version (rather than the hacker) for smoke grenades (as a difference to the Hacker).
However i would also advise you to start a little smaller. 100-150 points is best for a beginner to play with from what i have heard. Not that you shouldnt have a plan for a 250-300 point list of course!
I would also be careful of having both the Guilang, Tiger, and Aragoto all essentially attacking from their own, it leaves them easily cornered or focussed on for them to be effective...similar for a singler Domaru as well actually but you can keep some of the other models backing him up at least as he isnt as fast...
Just a couple things from what i know (little at this stage im afraid, sorry)