Matthew,
I have a 14in Motolita with leather bound rim - it is much better imho than the wooden on any length of journey. Mine is also offset so the instruments are still in view. I have a removable boss from Steve Simmonds which I use as a security measure (difficult to pinch the car sans wheel!!!) I also recommend the Mulberry Steering bearings which make the steering light at slow speeds and thus there is no need for the 15in wheel!
Cheers!