You can certainly get panning machines for a lot less than $16K. However, they do require a good deal of skill to learn to use well. (Hint #1 - you do NOT use tempered chocolate when panning). If you don't want to learn, or don't have the time to learn, a system like the Selmi Comfit is basically automatic. However, you do pay for it.
Enrobing does sound like it could work, but one thing to look for is that the enrober has a "bottomer" feature. This is when the carry chain goes below the level of the chocolate for a brief period to ensure that the bottom gets coated, not just the top.
In the Selmi line the smallest machine that accepts an enrobing belt is the Plus, and the combination is well over $20k, last I checked. FBM's smallest continuous temperer/enrober combination is about 10K Euros (~$13,500) after TheChocolateLife member discount. You may be able to find a batch/wheel combination for less.
Otherwise, a used machine may be your best bet.
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@DiscoverChoc