RE: what motor do you recomend
Sorry Spidr, my post was meant to be informative, not insulting.
Like mclina said, of those choices, I too would pick the 46LA.
However if you really want that extra power - for now, or for down the road - look at the OS 46AX. That's the top of the line in that size.
If you want to keep costs down, try the Thunder Tiger 46Pro or the Evolution 46