To do experiments with radioactive masterials, generally you will need a laboratory with appropriate radiation monitors, and trained health physics technicians. You probably don't have these at home. That said, the experiments you are describing can be performed. Most of them would require some fairly expensive measuring equipment as well.
Radiolabeled compounds are all quite expensive.
Basically, unless you can work in a university laboratory that already uses these radioisotopes, you won't be able to do these experiments. Argonne National Laboratory, Division of Educational Programs, Harold Myron, Ph.D., Division Director.