i'm temporarily on holiday
(until September).
I'm not built this amp yet. I tried only the integrated version from the other thread (with IR2010 and 2110).
I will built this amp (without protections) after the holidays so i can help you more than now, with o-scope, tests, etc.
Those advice were the cheapest i had in my mind.
In general, i never used resistors before a totem pole drive. For example, in my SMPS.
But i don't know if a 4.7r make the difference in this design.
However, waveforms' measure are required for more accurate replies.