MGB GT V8 conversion, gearbox kit complete

genuine OD gearbox from genuine MGBGT V8 car. comes complete with clutch, pressure plate, slave cylinder and piping. matching tailshaft to suit MGB tubed axle.   all mounting brackets etc.  gear box synchros good, no gear noise. was in good working order. Overdrive working as it should. The box was removed because it would pop out of top on downhill braking. Since removal 4th gear indent spring had lost tension and have altered. also unbenown the gear box rubber mount was perished which meant the gearbox may have been moving the gearstick against the tunnel but indent could not be done while engine in the car so I had ordered a new 5 speed at the time.  all you need is a rover V8 engine to carry out your MG conversion.  Will slot straight into V8 GTB  or convert any MGB into a V8. offers considered.