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!
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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.