Cap material is basically irrelevant. There are a couple good YouTube videos I could link when I get home that demonstrate different cap materials and values in the same guitar. Values make a big difference of course, higher values roll off more highs.
The main thing with pots are different shaft sizes. For guitar kits you most likely need import pots (metric), or need to drill bigger holes for CTS/Bourns pots (imperial). They also take different knobs so you need to be aware of that.
The problem with cheaper pots is going to be build quality and not tone. Durability, how smooth they turn, things like that.
22awg is a good choice for wire, give or take a little.
Here's the video. It's part 2 with values, part 1 has the different types of caps.
http://youtube.com/watch?v=rR4maqK_IhQ
The beginning of the video is a pretty good explanation of how the caps work with pots to make the tone circuit, and the last demonstration (11 step sweep) is the best demonstration of values.
Reply With Quote