if i had to assume raditz power lvl at this point and the fact that he most likely got a zenkai or two during the saiyan saga i would put him a little over saiyan saga vegeta at this point in time, just a rough estimate.Gohan would more or less also be stronger since raditz most likely helped with his training.
um can you explain how this is cheating since she wasn't with vegeta (Don't know if I spelled that right) during the namekian arc of dbz or yamcha cause she did break up with him during the beginning of dbz if I remember correctly