Scribbles That Matter has everything you’re asking for.

The paper is 160gsm, so it’s quite thick. They’re well made, dot grid, have a pocket, no perforations, and there’s a pen loop. I’m using one right now, and I haven’t had any trouble with ghosting or bleed through, even when going over the same area repeatedly with markers.

Well, everything except it’s a few dollars over your price range.