Looks tasty. I would move the three Buy buttons in a row up next to the tabs, personally. (Leaving the coins on bottom.)
I'd also kill the titlebar and use /rectlist.win_plain or /framestyles.single_pixel as the window frame, but that's just me. (Don't do anything that doesn't sound "right" to you based on my suggestions; I do those on my own. And yes, they're very wrong.
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