

Seeking Advice on Mounting 1970's Highway Billboard (10' x 21') to TV Room Wall
Thank you in advance!
So, I bought a 1970's never-hung billboard poster set -- 12 sheets -- of an old 7up ad that I want to affix to the wall of my tvroom. My plan was to just put it up with glue as you would any wallpaper. However, because of the complexity I'm not wondering if there are double stick tapes I could use to *temporarily* hang it until I know I've got it all properly worked out before affixing it for good. (And yes, I've long struggled over the idea of that this will effectively destroy a work of art... I'm still unhappy about it but otherwise it lives in a box and never has any impact...)
I'm looking for any and all advice here but, specifically, what are the safest products I can use to hang this for a brief (or perhaps longer?) period while I work out where all trimming should happen, etc., and that I can remove when I want to finally glue up the pieces properly. As the walls are plaster (not traditional gypsum drywall) I can not "pin" the pieces to the wall...
Image (A) shows the poster art as it would look fully assembled, all 12 sheets, on a highway billboard.
Image (B) shows a bunch of the actual sheets laid out.
Image (C) is an elevation view of the wall against which I want it to set -- notice the raised floor, doorway, vents, and other cutouts that need to be worked out.
Image (D) is the same elevation view with the actual artwork placed on top and trimmed off as I imagine it would "fit"
(PS: I didn't know where to post this -- if you think there's a better place, please let me know.)
EDIT: contrary to concern, this work was *not* designed by Peter Max (though the mistake in attribution is understandable) but rather by Pat Dybold who, as far as I can tell from the limited information about her online, was a graphic designer for a few years in the 1970's and who's main acknowledgment comes from work with 7-Up (https://chicagodesignarchive.org/designer/pat-dypold). Unlike the work for 7-Up created by Max, which now retails for many thousands of dollars, this set was purchased off a long-lingering eBay listing for a "best offer" price of a few hundred dollars. The concern about destroying the work is understood but the solution, boxing it up and leaving it on a shelf for another fifty+ years does not persuade. Professionally hanging the work would require a space in excess of 21 feet wide and 10 feet tall provided by someone who would like to have this as an installation, which it largely appears is not a person or situation that exists. (If you know someone who would like to invest the many thousands of dollars to place these pieces on stitched linen and wants to buy the piece, do put them in touch.) As someone who grew up in a world of fine art, art preservation, as well as an appreciation for the decorative arts and an acknowledgment that utilitarian arts inherently lead to significant wear and tear, I do not adhere to the belief that everything should be preserved above all else and have done my gnashing of teeth on this particular object.