I made my system from scratch. I do not have any welding tools, but I can be clever in getting things to work, (see my avatar). My reactor consists of barrels from the car wash, (they give them away). Some old motors and pumps from equipment my employer was throwing away, hoses, 120 volt heater element, air pumps, some fittings, extra buckets. Over all I spent in the vacinity of $100- $125. I make my 30 gallon batches, since the end of the summer I have made 600 gallons and have ben heating the house. Once I figured out furnaces and how set them I have not had too much trouble. I am lucky in that I have a good supply of veg oil, I use KOH as it seems to be a bit more environmently freindly. If I do not wash my bio I can make 30 gallons a day. If I wash and then dry it takes a bit longer but eventually I could get to that same level. When I started I was making product for about $.80-$1.00 per gallon. With the increase of Methanol pricing I am at about $1.50 per gallon. That is a lot better than paying Connecticut prices of $3.20 or more for home heating and $3.60 for pump delivered diesel.