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Money Farm II 'Pro'

"Money makes the world go round."

WARNING: this uses a trick that is game breaking. Use at your own risk, don't ruin your fun in career!

This rig exploits the fact that Ore is much cheaper than Monopropellant.
It uses 21 Convert-O-Tron-250 to transmute ~32k Lead into ~63k Gold, err Ore into Monopropellant.
This yields a profit of about 75,000 kerbucks per use.
With a level 1 engineer this conversion takes about 2 hours.
With a level 5 engineer the whole process only takes about 38 minutes.
The Ore is already stored, no need for drilling.

Some Ore is wasted on running the fuel cells, so deploy this during the day for higher margins.

This version is optimized for a 5 star engineer.
If you don't have a high level engineer you can reduce up-front investment by using Money Farm I.

There are three improvements over Money Farm I:
- Better suspension: this eliminates the tendency of the rig to break up when rolling off the runway
- Triple the fuel cells: this allows you to run at full blast with a 5* engineer, even at night
- Triple the solar panels: this increases profits when it is sunny by reducing the load on the fuel cells

Shoutout to BitterComplaint whose 'MonoProp Mining Rig' inspired me.

Money Farm II 'Pro':
Delta-v: 0
Mass: 555.959t
Launch price: 683,668
Recovery price: ~758,000

Business plan (Kerbin):
- Launch from KSC Runway, bring an engineer
- Conversion starts immediatly
- Roll the Farm off the back of the the runway (gently!) to free it up for other launches
- Set alarm when conversion is finished (depends on level of engineer)
- Hours until finished = (32,500 / current ore use per second) / 3,600
- Roll back onto runway for 100% recovery
- Profit!