Why not go the YS .63?
Should get it for alot less than 400US from singahobby, www.singahobby.com

Should have loads of power, unless you build a led sled!!!!!!!!
I dunno about the weight side of things, but I imagine it would weigh less than the .91 or 1.0 saitos.
More reliable fuel draw, and for smoke just get one of those hien smoke systems from japan, supposed to weigh very little, (4oz or something rediculous).
Anyway, that is just my opinion.