For all you cheapskates out there (me included) I have looked into the cost of these bushes and the lowest seemed to be about £160 for all bottom and top front. I have now found a supplier who has sold me a complete set of upper and lower front bushes for a chevette made by Superpro in medium hardness polyurethane with what appear to be stainless tubes/cases for the sum of £110 approx including delivery!
Bushes all look good and are now fitted but bottom ones really need some pressure (fly press would be best).
Anyway the bushes can be quoted through Euan on email@example.com
. Delivery depends on stock held at time of order and I have advised him that he may be contacted by club members.
Whilst writing I now understand why the bottom bushes can fail so quickly, the designers chose different angles for the bush pivots so the bushes have to distort every time the suspension moves!