Digital BW, The Print

In a few months I have an exhibition that would benefit from 
displaying the photos unframed. I plan to stick the photos on 
foamboard or plywood. But there's no way that my favorite Photorag 
will survive the several weeks of the exhibition if left totally 
unprotected. So either I need to apply some kind of coating or I need 
to divert to another paper. 

So my questions are:

1) Any chance a coating would suffice? And if so, would would work? 
What I have at hand is acrylic paint base (tough, waterproof and 
archival) including a means to apply an acrylic matte surface 
coating. But I'm happy to invest in something that's better suited.

2) What matte paper would be tough enough to decently survive and 
still good enough for fine art? I'm willing to accept if I can't use 
fibre based paper and have to use some kind of synthetic/RC paper. 
But it should be matte.

Thanks,

Joost