As the above, but replace it with a suitable steam engine outside the shed and a proper flat belt pulley system.
Wearing big sideburns and a top hat whilst working on it are optional.
 Or a one and half height stovepipe hat if you are short and selfconscious about, as Brunel was....
IMO the only ones worth spending money on are Cox guns, their range is named after counties IIRC. There's various leverage levels depending on what you want to squeeze out.
That said I don't know what they cost.
This is in the Hunterian in Glasgow, a magpie's nest make from wall ties and the like:
An excellent museum, varied exhibits so it's very interesting. Good architecture too, and medical things in jars.