Help me with an Asia map maybe?

I was thinking of doing a Russian conquest of Central Asia/Great Game scenario thing, but I really suck at doing inland terrian ( I get really thrown off)..Could someone please take the time to do it for me...I would like the Volga, Oxus, and Indus rivers as navigable, the rest can be normal, don't worry about resources either, just moutians and desert I can really throw off alot....If you see any huge mistakes in the land form, it would be nice to fix too, though I think that part is pretty good.

Please?

You might want to have a look at the Asian maps here.

-Oz

Yeah Actually I did, some of them go too far East, and the others too far west, I Even thought cropping el mency's Eurasia, but it would be too small to have correct navigable rivers on.

Thanks for the suggestion though.

Somewhat tangential, but am I to understand that there is a utility I can use to crop maps???