Document everything including labor, parts, paint, chemicals, dead parts sawand fuel/oil used to test run it, even ebays fees and the shipping if you offer it "free". You will find the profit margin shrinks to very little to tax but everything must be documented, write down every date/ time you work, save receipts including the values of parts you already own that you use to build the saw.
Ebay sellers listing 3/8lp chain as regular 3/8 chain to unload the sht are starting to really Pizz me off.
Ebay sellers listing 3/8lp chain as regular 3/8 chain to unload the sht are starting to really Pizz me off.