ZC-415 options/substitutions

[HotRod716]

As I'm working on making a hybrid of a works/870c car as a runner with cv shafts from newer yokomo's together. I ran into an issue. I need the zc-415 hubs to make the rear cv axles work on this car. I have to use 870c arms. I borrowed a set from my original 870c, that I bought used back in '89. I was wondering if there is anything else I can use to get it to work. Any help would be appreciated.

[Peakey]

Got any pics?

You can use the later works arms if you have any and use the later parts which should fit the 870 arms too or am I completely missing the point