If anyone is like me and trying to get there original RS4 Racer up and running again and lost there manual I found it on the HPI web site.
Here is the link to it
http://www.hpiracing.com/instructions/instr-nra.htm
I have found most parts that I need right now are still available online, I'm going to goto my LHS with a list of parts and see if they have them or if they could order them.