well ive taken the motor and gearbox out and put it back in after respraying engine bay
might be the mounts ?
not sure but the gearknob moves alot in idle aswell alot of vibration and shuddering in hard take offs.
hard gear changes it sounds lik a metal thumping/clunking noise each time i change gear when spirited driving
What I'm referring to is the axles on either side of the G/box (not sure what you mean by the tailshaft unless you mean the steering shaft for the 4WS or the exhaust pipe). The reason I'm asking about the axles (usually referred to as the CV shafts) is because if they are pulled out of the G/box instead of being "popped" out with a lever between the G/box and inner CV, it's quite likely 1 or even 2 of the 3 rollers that comprise this joint have been pulled out of the grooves they run in and fallen into the rubber boot that surrounds it. This can even happen when the CV has been correctly released but the splined stub has been tied up out of the way, allowing the joint to assume a very sharp angle with the rubber boot stretched.
Your symptoms you describe could be because the joint (or both joints), without one or more of these rollers in place, is rocking back and forth causing the noises etc.
You need to get all of the things that have been mentioned here and by other members checked out as a matter of urgency, if you go doing "spirited driving" while it's making strange clunking and vibration etc, somethings going to break in an expensive way.