How would you manage a centrally located new primary squamous NSCLC after prior definitive chemoradiation to 45 Gy/30 fractions for small cell lung carcinoma?

If it is localized disease with good KPS and there is no option of surgical resection, I would consider definitive chemo/RT to 60 Gy in 30 FX. I would keep the cumulative dose to the esophagus under 100 Gy, bronchial tree under 110 Gy, and major vessels under 120 Gy.