That's scary, it's all about using hydraulic presses just like the ones we all have laid about!
Seriously though, I've done them before on other cars I've ruined, sorry, owned, you just need to butcher the rubber out (don't burn it off it stinks

) with sharp metal things (get an adult to do this) then hacksaw a slot in the bush outer unless fitting polybushes which are machined to fit the old liner (some are, some aren't) and you should be able to knock it out. This should take you a few hours. Divide the time by the amount your boss pays you an hour, then look on ebay for a whole lower arm, they all come with lower ball joint and front bush fitted for less than the cost of the 3 parts in the assembly plus your hourly rate/free time.
I'm doing my ball joints this weekend, have a pair of lower arms to go on, does the steering knuckle have to come off the strut to gain access to the ball joint nut or can it be undone with the upper steering and suspension attached?