Motorola XTN Antenna Cover?

I am currently looking for Motorola XTN VHF radios and have a found a unit on eBay.

It is fully functional, but as you can see it has a problem with the antenna cover.
I am a decent electronics repair technician and if it is possible I would like to replace the antenna cover.
Is it possible to replace the cover and not ruin the unit?

So apparently the seller tried to pass off a UHF unit as VHF.