That instrument is delightful.
The_Unknown_Man wrote:I don't really know much about reverb thanks though. Anyone with experience or tips on building that part of the instrument?
Would something like this do the trick?
https://www.ebay.com/itm/NEW-MOD-Reverb ... Sw0exaIKjW
Or would I need a lot more components to get that kind of sound out of it?
Any help is appreciated

Seemed like the tank was just being used as a source in the video I watched (sporadically while listening), you can treat the output of a reverb tank like a guitar signal, might be a touch lower, but you can simply grab an RCA to 1/4" cable and plug a tank right into an amp to get results. So yeah, that tank should work fine (be warned, they don't like a lot of abuse..). If you need to drive the pan with signal, you can think of the input of the pan as a roughly headphones level transducer - though the inputs vary quite a bit in configuration, the outputs are more or less uniform. When used as pure mechanical source, the input jack can be used as an additional output too.
Good to see a hurdy gurdy built in too, that is the single creepiest thing I have ever played around with.