get it wrapped mate, i was gonna get my GTI sprayed (the roof) an the go to guy i go to for all my work said he will do it for me for £400
he even said to me , why u spraying just get it wrapped, an i did an it looks perfect, if u come rite up close then u can see its been wrapped, but i dont care about that, an plus as mentioned u can always take it off an go back plus it will protect the roof from bird poo
an the ariel is nothing mate, they just take it off, put the wrap on, screw it back in an happy days, nothing to worry about at all