If I were you I would not be using pressure treated wood around power tools or sanders. There are some really bad chemicals in them and they also impregnate the wood with a cyanide chemical for bugs. This would should never be burned in a fireplace as the fumes are toxic. Fins some basswood blocks or redwood 4x4 would be easy to carve and better grain then crappy hem/fir.
Those cracks and checks in the wood also detract from the finished product and with so many cuts against the grain, as this dries more in the home one may find small pieces actually falling away as it opens further. Hem fir is a very straight grained wood and not very good for carving as it tends to be stringy and does not hold a sanded finish well.
I have been building bonsai stands for over 30 years and 150.00 to 200.00 is ridiculous but P.T. Barnum made a living at it.
View attachment 128010 Based on this thinking I would have to charge well over a $1000.00 to make this profitable building this box stand.
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