JWvrs25

Ive had lots of play in my gear linkage for a while, when in gear there is significant movement left and right on the lever, its got to the stage that 5th and 2nd gear are becoming difficult to get I have to really make sure the lever is as far right/left as possible before trying to engage the gear or it wont go in. Ive reset the cables a few times and box is otherwise silky smooth. Its more going from 3rd to 2nd, and 4th to 5th which give issues which makes me think its the bushes not allowing enough movement. Ive had someone hold the bowden ends on the gearbox still whilst wiggling the gearstick and the movement seems to be coming from the cables at the end underneath the gearstick as opposed to the gearbox end. Does anyone know the part numbers of the bushes that need changing under here? Would i be best to get a 2nd hand low mileage shifter mechanism and fitting that instead? Advice would be very much appreciated as the etka diagrams are a bit vague to me for these parts