The spring chart you have is correct and all those springs fit RB5 and ZX5. The only springs that are different are the RB5 kit springs, the fronts are something like #40 rate!
Its shcok oils that are different, Kyosho 400 is not the same as Associiated 40wt. The japanese use a linear grading system for oil, but the americans use a sliding scale. Somewhere here on oople is a discussion about it. Here is the link to shock oil comparison chart...
http://www.twf8.ws/php/tip/shock.html
Kyohoso 400wt = 411cts nearest Associated is 35wt = 425 cts