The Precision doesn't have a standard micro-ATX motherboard, so I can't simply mount it in my larger case. Even if I could, the pcie slot is much shorter than the standard. On top of that, the GPU is longer than the entire case.
I'm willing to get creative, but I'm out of ideas.
Thinking outside the box, computers don't have to go in cases...
If you still want a case and can't find an existing one that fits your needs you could try to make your own. Know anyone with a 3D printer or shop skills?
You don't even need that. A random box will do just fine. You just need enough for the pcie plate to not get in the way. Then maybe something to prop up the GPU so it doesn't tip over depending on how big it is. But I've run a sideways motherboard just fine.
Thinking outside the box, computers don't have to go in cases...
If you still want a case and can't find an existing one that fits your needs you could try to make your own. Know anyone with a 3D printer or shop skills?
You don't even need that. A random box will do just fine. You just need enough for the pcie plate to not get in the way. Then maybe something to prop up the GPU so it doesn't tip over depending on how big it is. But I've run a sideways motherboard just fine.