poor man's decal

I need a full-color, durable decal to label a front panel.
The panel is ~8x17".  I'm only looking for prototype quantities
(someone else can deal with production quantities and "revised
artwork").
I think I can just color print the image, 1:1, laminate it
and use a spray adhesive to affix it to the actual panel.
This would be a win as it would be easy to replace when access
to the hidden fasteners is required thereby buggering the
decal.  (imagine doing same with a "real" decal and hoping
to get such a large item off "intact" soas to leave a virgin
surface for a replacement!)
I only have hot laminating capability (but could access cold
if there was an overwhelming reason to do so -- e.g., single-sided
lamination?).
I can use a 7mil film to stand up to the mechanical abuses that
will be encountered.
No idea how the colors in the print would fare, over time.
Nor if the film would yellow or become brittle with age.
But, both seem like they are likely far enough in the future
that it would be easy to dismiss them, now.
Anything else to consider?