The caps in questions are actually labeled differently : WFL 103H 630V A and WFL 103H 630V B ? Hmmm, interesting.
Well, 103 is definitely .01uF. And the manual calls for 2 X .01uf 400V. Since it doesnt specify differences in those two caps in the manual, I wouldnt think that it would make any difference (I have been wrong before, alot actually
). Anyway, Im thinking they are some type of tolerance code. The "H" is going to be the capacitance tolerance. I know that J is 5%, H is better (lower letters, tighter tolerance). You can do a search to find out. So Im thinking the A and B are tolerance codes for something else, maybe the dielectric or temperature rating or drift with temperature or voltage or something like that. So the "A" cap would probably be a "tighter" cap for whatever spec/tolerance those letters (A and B) represent. But I have a feeling that it doesnt matter which goes where, they are probably just what Bottlehead purchased (they frequently mention that parts types change in the kits but quality will be equal of better). It's safe to say that if those caps are connecting to the same points for different channels/tubes, it wont matter which goes where. If not, you can hang out for more experienced input than mine. Or, a Google search would no doubt turn up everything you want to know about those different letter and number codes.
And you are correct:
333K is .033
122K is .0012
But ... I think the P140J should be P104J. Regardless, based on the others listed, that should be the two "104K 400B" that you have ( .1uF 400V)
Also, as long as the voltage rating of what you have is equal to or higher than what the manual lists, you are fine. But im sure you already knew this.