Drymounting a Large Autographed Photo? A No-No?

[canjond]

Here's a question for the experts on the board... I recently had a large format (26"x38") photograph autographed by an athlete. The photograph was one I had made using an online professional developer - York Photo - with a matte finish. It's printed on large format photo paper. I then had the athlete sign the large photograph with a black Uni paint pen. The photograph and signature look amazing, and I'd really like to prepare the item for personal display. While value isn't significant (maybe $100), I certainly don't want to ruin the piece as it was something I had signed in person and is not replaceable (plus the athlete took time putting a mammoth - were talking 15" - signature on the item as he was very impressed with the photograph's size)!

Here's my questions - how would you prepare the photograph for display? I'm fearful that framing, alone, will cause the photograph to buckle and get wavy, especially given its size. Also, the photograph was printed and shipped rolled, so it already wants to curl on its own.

Is drymounting a viable option? Putting aside the irreversible nature of drymounting, my bigger concern is whether the heat involved will hurt the photograph, itself, or more importantly, the paint pen signature? Has anyone ever drymounted an autographed photo before? How were the results? Any damage?

Does anyone have other ideas, especially given the size and medium (and the fact the photograph is already signed)?

Thanks so much!