I got the RooCase and it's material is such that if there was a button of plug that was blocked the usual Exacto blade and saw could fix that. However I've encountered folk that are adverse to modifying or making their stuff.
As to the wake/sleep, my bet is that won't work.
Bob
PS. Why not get the Nexus 7. I have one and no regrets.
Hello, I have a Sophix Tab 730G and am wanting to get a case like the following:
Amazon.com: Acase Slim Case / Cover for Nexus 7 (Google Nexus 7 tablet) - Premium PU Leather with Flip Stand Suppot Wake/Sleep Function (BLACK): Computers & Accessories
Will that work with it? I am also wanting to get screen protectors. I assume getting 7" screens would work just fine on the 730G, right?

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