Wheels - handbuilt, Campag or other

My current bike has hand built wheels - ultegra 6700 hubs, ambrosio excellight rims and sapim spokes. They've hardly needed any attention and they seem pretty good to me but I've not much to compare them with, which is why I could do with some advice........
I'm planning to go a bit mad shortly and splash out on a new bike - custom steel frame with Chorus groupset.
I'm wondering whether to get wheels similar to my current set (£350 ish), Campagnolo Zonda (cost about the same) or Eurus (£650ish).
I'm ok to spend the extra if I'd see some benefit, but not otherwise. I do a fair amount of 60-100 mile type riding, mostly over undulating country climbing is a factor too.
I don't race but will take all the help the bike can give me to get my speed up, if you know what I mean. Current weight 12 stone, but that might go down a bit more in January!
I started looking at the Campagnolo wheels because I like the way they look and they get good writeups. Any advice on this very welcome - either these options or something else. p.s. I've used Mavic Askium Race in the past and not got on with them.
Thanks
I'm planning to go a bit mad shortly and splash out on a new bike - custom steel frame with Chorus groupset.
I'm wondering whether to get wheels similar to my current set (£350 ish), Campagnolo Zonda (cost about the same) or Eurus (£650ish).
I'm ok to spend the extra if I'd see some benefit, but not otherwise. I do a fair amount of 60-100 mile type riding, mostly over undulating country climbing is a factor too.
I don't race but will take all the help the bike can give me to get my speed up, if you know what I mean. Current weight 12 stone, but that might go down a bit more in January!
I started looking at the Campagnolo wheels because I like the way they look and they get good writeups. Any advice on this very welcome - either these options or something else. p.s. I've used Mavic Askium Race in the past and not got on with them.
Thanks
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Posts
One thing to watch out for - the Neutrons can be tricky to fit tyres to - especially Continental.
They've now been relegated to my winter bike as I treated myself to a set of Shamal Ultras.
The Conti Gatorskins can be a wee bit tight on the Zondas but the GP4000s fit onto the Shamals pretty easily.
For a more contemporary looking frame, the Campag factory wheels are very nice indeed. I have 2011 Zondas, which are a fantastic wheel, especially at the sort of prices Ribble knock them out for!