Okay, but how many of each do you want?

I have, or have access to these.

RSVP normal: Most colors, but commonly red, blue, and Black.
RSVP Sunburst: all colors including metalics.
RSVP Moonz: Purple, Green, Blue, and a greyish blue.
RSVP RazzleDazzle: Most colors. But Right now I have red, blue, pink, and a green I believe.

If I dont have everything you want we could lower the trade. To say...
4 RSVPs for 4 Rushon pens?

これ誰か訳せる？