Either the K&N or the M1 should be fine for more than 10K.
Assuming that your engine is clean and healthy, the M1 oil is probably okay for 10K as well, although how you use the truck would be a factor.
I see that Tig weighed in to this thread, and he has used M1 on 10K drains for decades with good results.
I might recommend a UOA after a 10K run, just to see how the oil has held up, but if your use of the truck doesn't involve a lot of short trips, 10K should be doable.
I wouldn't do it, but then I don't put enough miles on any one car to get any real benefit from long OCIs.