Getting back to something more mundane, but on topic. I found a nice fit in OSH with the following parts. So now I don't need to drill into the plastic box and I don't have to practice my soldering on a round joint.
The down side is that clearing the output might take a couple of 90 degree corners now...clearing the volume meter might be challenging.

Now the other peeve of mine with the original design was the bolt that held the plastic drain in place requires removal of the front panel. The front panel requires removal of the foot. The foot gets rusted in place because of the plastic drain.
Instead, I went with industrial strength velcro.


So the box will seat to the side of the system and can be removed when necessary for inspection, cleaning, etc.
[Edit] whoops forgot to show off the box [/edit]

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Mark