Roland System-100m Model 190
Roland System-100m Model 190 Empty Powered Cabinet For Sale.
Tested and working. This unit's sides were replaced with new ones made by a 3rd party. Note the small dents on the top piece that were banged out, though there's still evidence if you look closely (we attempted to capture this in the last pic).
Power supply and cable are built in but you'll obviously need modules and power cables to use this. There are a couple people who have designed new modules in 100m format - this case would be a great way to add those to your current setup.