Here I pay 40 euro/5 litre for 16% Tornado.
Prices for the components:
Synth oil: P2000 €13/l, €56/5l
castor: €6,15/l , €23/5l
Nitromethane: €19,20/kg , €85/5kg
Methanol: €12/5l, €29/20l
All components are made by Jonkers: the mfr of Tornado.
When I mix 16% nitro, 3% castor and 6% synth with the methanol, then the costs will be around 50% of premix.
You can mix 1 litre at a time....or a quart...whatever you prefer.
And danger for the neighbours??
There's a car in front of the house with 50 litres of gasoline in it...or a LPG tank...there's all kind of chemicals in the kitchen: methanol, NaOH etc etc.
What can happen?
The shed where my homebrew is stored can burn down and the homebrew can accelerate the fire...but it won't put the house alit. Too far apart and made of brick.
Poisonous?? The most poisonous ingredient is methanol...the stuff that's in my kitchen...