I've got a large (well, pretty big!) heavy duty keyboard case that I've had for over a decade ... I'm told it's an SKB, and it's built like a tank.
It's been on the bottom of lots of vans, with lots of guitars and other cases on top, and it's got nary a scratch on it (though I couldn't completely remove the stickers I put on it! I'm sure they'd come off with some rubbing alcohol if they bug you ... or you could just cover them with more stickers)
The latches are fantastic.
What else? Oh, the foam on the inside is the only thing not as good as it was originally ... No big deal, IMO, just shove another piece of foam in, and you'll be good to go.
The closest similar case that I can see on line is this road runner case (which is $349):