Help fill holes in Trunk lid

72 blu thought a pop rivet over a slightly dented hole was a schmutz job. I removed 12 holes from vinyl roof dinged hole with rivet ground down. Prepped and had car painted by Earl Scheib.The repairs with rivets lasted 20 years without defect till it sold(still were not visible to eye!).Hey to be honest i probably have done sandblasting and most low to mid level paint panel repairs.The issue is time and money.I have a few ideas but pm me . What size drill bit fits hole ? There are methods to fix and not be as perfect as welding,grinding.total refinish.Looking at post pm me and your location tools access and familiarity are why we have not helped. joe