Thanks for the great feedback!  I appreciate it.

Quick build update - I started the leg rails this weekend.  I didn't get much build time so progress is limited.

First, I modified the dimensions to match the tooling I had.  End mills are very expensive. So I chose to live with slightly different dimensions to save dollars.  I must also give a huge shout-out to @TheNylonGag!  These rails would not be happening without his generosity.  Thanks Gag!

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(Very) rough cut:

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Pieces milled to size and cleaned up:

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First slots cut in all four pieces:

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That's all for this update.