The tone pot is a S curve/taper. Peavey used these for the spin a split on the T series and continued to use them on pretty much everything until they ran out of stock. Just get another audio taper for the tone pot, as linear/B taper doesn't do tone very well. However, Linear tapers work great for volumes on a VVT harness, they offer a little more precise, blendable range. I also put a series/parallel push/pull pot on my Foundation to get another usable tone out of the bass.
If you can find lower voltage caps, that works, but usually 50v is easily found.