Nikkor made a tank and reel for 12 sheets 4x5. Works fine.

Jobo made a reel that took 4" wide film, 6 sheets. Works fine also. Use in rotary machine or hand invert.

The trick to getting even development with either is to fill the tank with developer and drop the loaded reel into it in the dark. Actually this is best practice with any reel/tank system with the more reels or wider film it become more and more critical because of longer pour in times. Ideally film must be submerged as fast and evenly as possible.

Paterson tanks are great because the fill from bottom up with a funnel and developer is not run down the emulsion.

Based on my experience, it should work well. Question being why reinvent the wheel?