Now its all back together, it needs a good clean and polish.
Using the green window cleaner and a microfibre cloth, I was able to clean the whole body streak free as it was raining outside. I found this quicker and better than water as it wasn't muddy nor really dusty. But it had finger marks and general indoor dust.
I then bought some Autoglym stuff at Halfords as they must have had a "shit summer lets get rid" sale on cleaning and polishing stuff.
Using Super Resin Polish, then Autoglym Extra Gloss Protection did this!
Extra Gloss Protection left on over night.