Need info on what Cat manual to get for 3406

I have a 4CK 3406C in my truck. It was originally a PEEC and previous owner had mechanical pump and timing advance put on. I’m trying to figure out what repair manual I need to get that would cover the info for pump and advance. Rather not spend several hundred dollars on one through Cat so just a matter of finding the right one online. Would one for 4MG, 2EK or any other prefix get me the info I need? The one I found for 3406B 4CK appeared to be for PEEC engine

 

I’m wanting repair info on the pump and timing advance for now. Not anything else. So according to what I’ve read, a manual for a PEEC engine will not give me that info. So I need to correct one for a mechanical pump.