Yeah i think so with it being silver metallic. You can get the spray paints from Ford, it comes with the colour and the lacquer in 300ml tins. I think this will be enough for 2 wing mirror covers.
Might be worth finding out how much a spray shop would cost first as they might do it cheap with them being small items.
If you do decide to give it a go get some 2500-3000 grit wet and dry and some tack cloths. Spray fine coats making sure to keep your arm moving and not staying in the same spot. After every coat allow to dry for 15-20 mins and then de-nib with the wet and dry taking off any high spots, then use the tack cloths to remove any dust before spraying another coat. On the last colour coat don't sand this back as the sanding marks can be seen through the lacquer. Then leave it 2 weeks to harden before de-nibbing and polishing the lacquer and it should look great.