Hi Andy,
C13 should be 0.1uf. The rest of what you asked is quite 'normal'; KB were famous for mucking around with circuits in mid-production and hence several variations exist. This includes the resistors-in-parallel thingy, where I think the change came between early and later models IIRC the single resistor was found in later versions but someone may correct me on that.
I can't remember now which caps were TCC's but I do recall they were rated at 350vdc wkg. Don't forget, btw, that these radios used an auto transformer as opposed to a proper one
