Autohex II tricore cable has a terminal resistor (120 ohm) included, so you don't need to add any resistor.
For boot mode, Autohex wvci iii boot pin is connected to a resistor of value 1000 ohm, so you don't need any external resistor too.
Only for MSX8X you need to use resistors as described in the tricore boot mode software.
The resistors dose not need to be able to handle high power, 1/4 watts are more than enough, which means you can use any set of resistors.
5% or 10% tolerance are fine too.