as far I know and have learnt...

mid body side stripes were part of the package... never have known about a delete option of these.

V21 could be the blackout hood finish over the bulgde ? if so, not all Rallyes where with them since PHASERED stripes ( reflective ) didn't have a matched finish for them over the buldge ( or deck lid stripe ) just black stripes. SOOOOO... not all rallyes got V21 I guess

hood pins were optional.

On 74, other Chargers with mid body side rallye stripes weren't Rallyes... Springs specials got them... and SEs could get the option. Anyone of them were rallye.