Weddingbee boards

Hi Bees!

I'm diy-ing a guest book "family tree) and am looking for archival, quality, preferably linen textured paper.  Off white or white is great!  Size 18x24 or something big like that.  I have spent the afternoon googleing and have found 50 packs of paper that will work, but cost wayyyy too much I just need 1 page (may 2-3 to practice on).  We found some paper at michaels, but they were all wrinkled and the staff was less than helpful.  Paper source had only light blue (odd-I think so).  So if any of you wonderful crafty and resourceful bees can help me out, I would REALLY appreciate it!  Thank You!