We usually make frames with longer posts as this adds comfort and makes for a lighter and stiffer frame. The beauty of a custom frame of course is that you can dial in your own preferences, no spacers, shorter post etc.
The most common seat post length is 300-330mm
The ideal rake is 43-45mm. The Enve forks are brilliant!
I was originally planning to source the fork myself and keep it black, but that's just the colour scheme thought of the day talking.
If i wanted to get the fork direct from you guys and get it painted to match the frame can you do that? I see from you other fork options that paint is 40 pounds, what would you base price for an Enve 2 fork be?
Yep, you should be able to use 43's with your frame.
I have 4 frames all with 73 head angles (as steep as you get) and on all but one I use 43 forks. There's plenty of clearance between the front wheel and the down tube.
I only used a 45 on one frame as the forks had mudguard eyelets... good for my winter bike... and clip-on mudguards didn't fit/sit on my forks.
Should imagine that 43's would fit most bikes, including Steve Bauer's Stealth Bike! http://www.retrobike.co.uk/forum/viewtopic.php?t=137478