My favorite brown card stock is Neenah Canyon Brown. I have it in both
80# and
100# . the links go to two different sites. I haven't purchased any online, because I purchased mine from XpedX when we were stationed at Ft. Bliss, TX (El Paso) and stocked up on it then. I use the 80 for layering and the 100 for card bases.
I don't have any info for the orange, but I bet Neenah makes something. I would check with a local printer and see if they can order a ream for you.
~ Pam