SilverStone’s FLP02 late-80s era tower PC case looks ancient but supports massive modern GPUs, up to 360mm AiO CPU coolers, ...

or a similar beige retro tribute case from SilverStone, will be made available outside of the Japanese market. Features and pricing aren't bad if you are on the lookout for an easy sleeper PC ...

With a little elbow grease and some creativity, it's not too terribly difficult to convert a worn out chassis into a true retro sleeper ... to the aftermarket PC industry, too.