Hei, Harald!
I would not go below 14". I thought 14" was heavy on my Roadster with wider tyres, so I believe 13" would be equally heavy on yours with it's skinnier tyers. One can always cope with the strenous parking, but the real issue with heavy steering is less control, slower reactions and corrections when road driving, especially in a spirited manner. With power steering you could easily go down to 13, but without I would stick to 14. If leg room is an issue or the instruments are covered by the wheel, perhaps the Moto-Lita offset - comes only in 14.
I have fitted power steering, so I know well the advantages of light steering. As the steering column after fitting ended up a few mm lower, the top of the 14 wheel now covers the instruments, so I have ordered a 14 offset wheel from Moto-Lita. That means that one/Harald will be be able to see it in the flesh when it finally arrives (Moto-Lita has a huge delay...) and that my old but very well kept Moto-Lita Mk 9 will be on sale, in walnut, though. Exquisite, and goes very well with a dark stain dashboard (Hører, du Harald? ;-) ).
