Good on you Zeno, I like your hap-hazard approach. Youll get there in a round about fashion.
It wont be as quick as you first imagined, but youll arrive there.
It wont be as cheap as you imagined but it will be worth the effort.
You wont get any sleep, coz of all the thinking youll be doing.
Welcome to the CNC Zone ( Not that dissimilar to the Twilight zone )
EDIT: I guess 25 euro if you already have all the parts and dont need to buy anything alse except for a few nuts and bolts. I bet he didnt include the cost of the driver cards, his software, his computer, the cableing etc. Maybe he was refering to the actual steel work.