diy headboard: four boards, a sanding block, and a can of stain - hang with large strips. simple fix until a house where a big headboard will fit :)
Upcycled Retro Chest Of Drawers Vintage Teak Chest of Interior Design Home
Buffet idea - Chic, Salvaged Mid-Century Modern Furniture by Revitalized Artistry : TreeHugger
diy idea, paint different drawers.
With its adjustable shelves, the IKEA Mandal headboard is already fairly adaptable, but have you thought of using it in ways other than a headboard? These folks did; perhaps it will inspire you to look at the Mandal with new eyes of possibility.