Nate i am making mine from an old treated 2x8 similar to one I had years ago and worked really well for me.
I'm just using a floppy abrasive wheel on an angle grinder to shape it. I will still work it narrower than this for coon and coyote, its not done yet, but I do like it slightly wider than others so that I can also do beaver and big coon on it. I know its not a hard wood and maybe too wide for most folks but a smooth sander for final finish then will seal it with an oil sealer. Used one like this for literally over a decade several years ago and worked very well.
I am going to also build a narrower, smaller PVC one this summer for fleshing rats and mink.