Why are we talking per month on fortnightly work? £3000 a month is £1500 worth of work.
I'd pay to the value of the work not what it can take monthly or yearly.
It can be dressed up as 3 grand a month but you're doing the whole round twice. You've got to balance out takings against the work involved.
Again, you're paying for the chance to earn; you're not guaranteed anything. If you get a job, you're usually guaranteed a wage?
Buying a £500 pole or brand new double A-frame doesn't make you any money. There's a lot more to it.