I ended up picking
a resistor book like this one on amazon to solve this problem when making my portable. It should have most of the resistor values you need. Mine ended up including a few extra pages in the back with common capacitor values. I don't know if this one does, but
this second one that I'm linking here probably will, it's a bit more expensive though.
As for specific values:
R3, R5, R7 and R8 use 750 ohm resistors (I ended up using 820 ohms and it worked just fine).
R1, R2, and R4 use 47k ohm resistors (I stacked a 51k ohm on top of a 680k ohm resistor for each of these to achieve a very close resistance).
R6 is a 1k ohm resistor.
R9 is a 2k ohm resistor.
C1 is a 1μf capacitor
C2 and C3 are both 0.1μf which is equal to 100nf depending on which units the book you get uses.
You can obviously order these up specifically, but it may or may not be more cost effective to pick up one of the books I shared especially if you see yourself doing future projects like this. My book has come in handy more times than I can count, and it's still almost completely full.
The Advanced N64 Trimming Guide lists all of these values under a section titled "Minimum PIF circuit". I would recommend checking it out if you haven't already since it covers all of this and much more.
Finally, I'm pretty sure my book contains 0603 components which would be the size of resistor and capacitors I use, but it's worth double checking to verify that this is the correct size that the PIF breakout board uses.
