There may be ways to try to DIY the look of panel ready appliances, but they won't look or function quite the same way. Standard refrigerators vent differently than those designed for panels. If you cover those vents, you'll cause your refrigerator to overheat. The hinges on standard appliances also aren't designed to carry the extra weight of cabinet doors. In the end, if you love the look, it's best to work it into your budget, even if it means cutting costs elsewhere in your kitchen design.