Printing using pigment ink onto archive paper or photo paper

Hello,
I sell childrens prints and I am using an Epson p 600 pigment inkjet printer to reproduce certain images. I am using Olmec paper at the moment that I am very happy with and between the printer and the paper produces great results.
I have used Olmec archive matt which gives a good image but is a little"flat" in the colours and finish and I have used the Olmec photo lustre that gives a very good finish indeed with great colour.
My question is that I would rather use archival printing paper because of the extra longevity of the print but prefer the finish of the photo luster paper. Using pigment ink on photo paper will the print still have a good longevity?
Any advice welcome.
Thanks

 

Are you talking about RC paper? If so, they last fine.

Here are some inkjet and other color imaging media fade tests.

http://fadetesting.tumblr.com/