I so agree with this philosophy! Just forge ahead and ask questions later. 
Amazon for the machine and rotometals for the supplies. You can get rotometal on Amazon as well but they really jack up the price and the same ingot was $10 more per bar. Free shipping from there site if you spend enough and it was pretty quick.
Something to pay attention to is what metal you want to melt. You can’t do zinc in this pot becasue when heated it has a chemical reaction and will burn through the carbon steel pot. (I had no clue this was a thing until I researched it!) Luckily you can get zinc free pewter etc and it wasn’t an issue for me.
https://www.amazon.com/gp/product/B000NOORXY/ref=ppx_yo_dt_b_asin_title_o02_s01?ie=UTF8&psc=1