Looks pretty good as is. Might benefit from gentled cleaning so as not to to disturb decals Grips for handle, recoil starter and water pump oscillator are available as reproductions. I do not know if ignition coils are out there. But, coils may be OK unlike later OMC coils.
Work on only one project at a time, take photos and notes. work at your pace. Some are skilled and fast and can make a living as mechanics. In the hobby speed is not required. Work with care and keep track ow what goes where. A parts manual for the model and year may help in tracking down parts or in assembly. Not essential as many in hobby do quite well without.
Louis