It'd probably be best to ask the frame builder what tubesets he recommends.
On MAX, this is pretty nice:
They've dropped to the MAX toptube to save some weight, and I've got to say I think it looks a lot better for it.
I'd also think about roughly what you want it to look like - classicly styled, more modern, somewhere in between. Personally I'd go slightly more modern as it gives you more build options and if/when you upgrade things like forks newer models won't look odd.
It'd probably be best to ask the frame builder what tubesets he recommends.
On MAX, this is pretty nice:
They've dropped to the MAX toptube to save some weight, and I've got to say I think it looks a lot better for it.
I'd also think about roughly what you want it to look like - classicly styled, more modern, somewhere in between. Personally I'd go slightly more modern as it gives you more build options and if/when you upgrade things like forks newer models won't look odd.