Trying to gauge the rarity of my Ooyama’s Pikachu vending sheet

[BrocksNoseBleed]

I recently traded for a large vintage box of Pokemon items. And I got 18 un peeled vending series sheets.
I didn't even pay attention to which ones specifically were in the stack but I got one I think it's pretty uncommon.

Series 3 sheet 2. The Ooyama's Pikachu sheet.
I really don't want to unpeeled it. It would be awesome to have the whole sheet preserved in some way.
I have doubles and triples of a few so I did plan on peeling a few because I collect these.

Any input would be appreciated.

Also*
I'm new here and I'm an old collector. I've been collecting pokemon since I ripped a Cardass pack as a kid.