Hello Doolittle, Sorry you have to join us.
While it is correct that HPV +ve SCC responds very well to Radiation, I personally would also opt to have the chemo with it. Chemo improves your chance of no reoccurrence by 10 - 20%.
This is an aggressive cancer and I would hit it with everything in the arsenal.
Have you had a second opinion from anywhere ?
Was your treatment plan devised /discussed by a tumour board?
I'm sure others will chime in shortly.
Best of luck,
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!