Aladdin cosplay help?

[BohoColli]

Looking to be Aladdin from the Disney movie of the same name. However, I am a girl, and decided it might be easier to do the Disney parks version of this character:

http://www.hinkty.com/weblog/2004/10...smine_1069.jpg
http://farm4.static.flickr.com/3352/...44b856b5c2.jpg

I haven't had any issues finding/making parts of the outfit except one: That undershirt! Does anyone have an idea of where to find something like it?
Thank you so much for all your help here! Much appreciated!

[PSY-chan]

This pattern is pretty close; you would need to make some modifications though.

[Cynthia]

Some fabric break down and additional details:

-His shirt is linen, but another cotton-based fabric with a visible weave will work.
-His vest is heavy drapery satin that secures to the shirt with snaps.
-The pants are double layered with a cotton filler towards the bottom to create the "poof" look with simple, elastic-gathered, bands at bottom.

http://cache.graphicslib.viator.com/...96-770tall.jpg