One option would be to make your own. If you take that stock cluster out you'll be able to see how it's assembled. Likely the front fascia is held on to the back body by a series of very small tabs or crimps. If it were mine I'd be thinking of reusing the face glass and the bright surround, making my own gauge panel from some flat stock (use the bezel or back housing as a pattern). If you like the look of engine turned stainless/aluminum you can make your own or buy it in sheet form. If using aftermarket gauges (SW, Autometer, etc.) you can make some paper patterns to simulate the gauge faces and play with a variety of layouts till you figure one that pleases you.

You could also ship that stock unit to one of the gauge companies for refurbish/update................but you're probably looking at something close to a grand for that.