second hand polybushes?

reason i ask, is the previous owner put new TCAs on the car and removed the old ones (and didnt swap the polybushes).

it seems the standard ford bushes are now worn and the front wheels move under braking. i had a rummage in the spares box given to me with the car and the old TCAs are there complete with the polybushes (rally design) that were on the car before.

they look in good nick, but obviously they have formed slightly to the old TCAs.

car is going in to the garage this weekend, to have the bushes fitted and i have been given a good price for some new powerflex ones, or do i just stick in the old rally design (polysport) ones and save myself money

please help

rory