asre end wobble is 99% down to fucked rear shocks, another proble fiesta suffer with is the brackets for the anti roll bar breaking so if you have a ARB check them.

some might say the rear axle bush it self, but TBH it would have to be real bad for it to be that, best thing to do is get it in the air and give the rear axle a good looking at, take the shocks off and take the spring off and check it, £20 says there fucked.

as for bad juddering from the front, you disc and pads could be worn right down, chances are the disc are fucked or maybe the wheels are out of balance.

as for tyres screeching, could be down to bad tracking, but check the ball joints and ARB drop liks if you have a front ARB, these could also be a cause for the juddering when braking

things to check on front,
shocks
ball joints
track rod ends
rack and U.J
ARB drop liks
disc and pads
wheels ( might be bent)

back

shocks
ARB brackets
rear axle bushes (cant see it TBH)
wheel bearings