For the 25ohm resistor you need 5W wire wound not .5W
You can use 27ohm resistors, and grab a handful these can also be used on Williams driver boards.
Also grab a pack of 100 1N4004 diodes as you will find yourself using heaps of these for other boards or for using on your coils.
I think I did get hold of a 630ohm resistor for mine, but a 680 should be ok.