I would imagine quite a job !!  The output from the crankshaft on the engine will be rigged with dimensions for connection to a torque converter and not a manual clutch, the bell housing bolt plate on the engine will have to be swapped, gearbox mounts, throttle and pedal box in the cab, shifter mechanism and interior trim, kick down control on carb. 
Hope this helps  
Steve
                
 SB
                
 November 2006