U are right, replacing the bushings while the joint is on, is horrible, also the busching must be placed on the right way, otherwise it’s gone after a few thousand miles.

The joint nuts are a bit difficult to loosen, you need an socket 27 with 24 tooth.
I used an 2 kg brass hammer, two wacks with and the joint was free. ( both sides)

And don’t forget only tighten the ( new) bolts on the busching side after you put the car on his wheels, drive it for a few meters then torque to 100nm and then 90 degrees,

The joint is 80 nm ( also new bolt)

But if you could buy a set at FCP, you get lifetime free replace.

I ordered a compleet front set of all arms for 500 euro’s (got 50% reduction ) otherwise 1000 euro’s.