Rare Imperial Walkers. AT-ST/A, AT-AR. [Lal-Khan]

I was hoping someone might be interested in drawing two vehicles that are employed by the Imperial Military. These two vehicles are the AT-ST/A (All Terrain Scout Transport/ Assault) walker and The AT-AR (All Terrain Advanced Rider) walker. These two vehicles are cannon in the Star Wars Universe but they are extremely rare and not much information or photos of them exist. As someone who has a keen interest in the Imperial Military and currently writing a novel that will incorporate both of these vehicles I was hoping someone might be up to the challenge. The only specifications of the two walkers that I would ask for is that you fallow the descriptions provided by Wookieepedia.

AT-ST/A http://starwars.wikia.com/wiki/All_Terrain_Scout_Transport/Assault
AT-AR http://starwars.wikia.com/wiki/All_Terrain_Advance_Raider