F5 Resistor Across Input

I'm building an F5. In the build guide by 6L6, the resistor across the input, R2, is 47.5K. In NP's circuit on his Operation and Service Manual its R10 and 100K. I don't happen to have either resistor but I do have a 33K. Any problem with that? I don't want to order just a couple of resistors and spend $8 for shipping since I have all the other parts.