The golf of dreams is slowly killing me

i took it for a Mot today it failed on a few things most of which i can sort myself but the main thing it failed on was the offside rear trailing arm rubber bush, was qouted by the garage just over 300 pounds + vat.......

im not a rich man and wanna save as much money as i can. is it an easy job to do?, what tools are needed or better yet is there anyone local that could do it at a fraction of the cost with added beer tokens?