^^^
Shame (see above) but I was going to say to get some better requirements
It's easy to get a loud freehub - Hope ones are superb, but really any freehub can be made to be 'loud' with using less or a lighter oil in them, than grease, but YMMV obviously depending on your seals.
I'm using 10W-40 motor oil in my Zipp ones and they sound great!
But an idea of what more you want out of the wheelset would really help to pin things down... Like the type of riding, tubeless or not, the type/size of tyres you wanted to run or if you wanted a super aero/lightweight/bling set. With £1000 you have a massive amount of choice.