Hello Brandon, my approach would be to treat this as aggressively as you can. Your cancer has already proven resistant to both chemo and radiation. You had extra nodal extension. There will almost certainly be microscopic cancer cells remaining. Personally I don't like the odds of 30% likelihood of cure at your current status. As Paul says please get a second opinion from a top CCC.
Thinking of you,
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!