IUP instrument lens replacement

[Rusty67]

The instrument cluster plastic lens on Mach 1 is all jacked up. There are swirl marks on it from the previous owner. It looks like he tried to clean it and forgot to wipe it after putting a spray cleaner on it. I bought a new Ford instrument cluster and then realized mine is silver since I have the IUP and all the ones available from Ford are black. I haven't been able to find the IUP version brand new.

I was thinking about baking the new lens in the over at around 200 degrees to see if I could separate the clear lens from the back backing plate. If that works I could do the same thing to the unit I have in the car now and then bake the 2 good pieces back together. Has anyone tried something like that? Kind of like how ricers bake their headlights to get them apart and clear them back in the day?

Is there a better solution? These lenses look like they are glued together with the backing so I'm somewhat sure I'd have do destroy one half or the other to get a good usable part.