make sure your not going to be pumping 30-40 psi into a carb that only requires 6-8psi. other than that.. if you have the mounts and all and you know everything just drops or bolts in... i dont see why one person could do it.
if they know what they are doing.
its not fun to drop the motor by yourself got to keep it fun man, yeah i already know about the fuel i already got a mechanical pump intstead of just running a regulator.