Is the reaction rod in good shape, that is not bent? If it is good why not replace just the bushings? Silent block bushings are made by many manufacturers,e.g.,Powerflex. Because silent blocks are used in so many places the prices are very cheap.
The block material can be rubber(most common) or urethane along with others. I have nothing to say for or against Rossopuro, but just offering a different avenue.
Good Luck