changing the bushes is not too easy because of limited access to the rear bolt of the clamp, however only ordinary tools are needed.
you need the vehicle up and supported, preferably with both front wheels off, 10mm socket and combination spanner IIRC are the only tools you need, IIRC the rear bolt hole in the clamp is slotted, so removing both front bolts let the a/r bar move forward when the rear bolts are slackened.
mrcheerful