I've been asked to replace the rims on a set of Dura Ace wheels. They are very worn but the hubs are still good. I've done this in the past with Cole C24 rims but no idea where to source them nowadays. The spoke count is very low: 16/20 so I'm struggling to find any rims at all with a 16 hole drilling. I've read on some forums of people using a 32 hole rim and lacing it to every other hole as it's a radial pattern. Don't think they'll be happy with that. Thought about Chinese carbon rims too as you can specify what you want but they want aluminium rims rather than carbon.
Any pointers much appreciated.