Not a Big deal Gents
Just give a going over with a decent cutting Polish...(G3 or similar)which will soo sort things!
Plenty of Gel Coat to polish up!
An electric Buffer will make it easier for large areas and by hand where it's Fiddley....Tips!..Do small area at a time,keep moist (I use a water spray on Cars) when you've brought Her back and your happy....seal with a decent Auto polish and your Pride and Joy will look good as new
Regular Polymer Polishing will help build up a barrier not only to UV but Crap and Mess ect too.
Of course any surface will suffer from long term exposure to UV....so a Consul/seat cover and or inside storage is to be recommended...and is the way to go.Save you a lot of elbow grease as well.