You do need to get that second opinion. As this is a recurrence, and a rare one, you need to get to a Center of excellence. A Center that treats unusual cases on a daily basis. Please consider getting a second opinion from a CCC.
I too would be worried about the no chemo, but I am not a doctor. I would be worried about mopping up those stray cells that have escaped.
There has been research done that shows where you are treated matters. If you can do a CCC, please consider this. Hope you get a plan in place soon.
Tammy

Caregiver/advocate to Husband Kris age 59@ diagnosis
DX Dec '10 SCC BOT T4aN2bM0 HPV+ve.Cisplatin x3 35 IMRT.
PET 6/11 clear.
R) level 2-4 neck dissection 8/1/11 to remove residual node - necrotic with NED
Feb '12 Ca back.. 3/8/12 total glossectomy/laryngectomy/bilat neck dissection/partial pharyngectomy etc. clear margins. All nodes negative for disease. PEG in.
March 2017 - 5 years disease free. Woohoo!