And if we must choose between the two wheel choices...
I'm in the minority - as usual, but we claim our taste is rare and elevated
- and prefer the 5 spokes. Also, in near blasphemy, hope you'll strongly consider the smaller diameter rears. To my eyes, there's a proportional upset much larger than 18 (realizing 17s are nearly done for). The narrow sidewall coupled with so much metal face distorts the notion of 'classic' and forces too much attention to the wheels. Like an elegantly mature lady wearing age-inappropriate shoes. Photoshop will of course be your friend there.
But, I'm a freak. My NSX had 19's on it when I got it and I pulled/sold them instantly. My Boxer's ancient and idiotic metrics (what were they THINKING? or DRINKING?) could - at the time - only be 'upgraded' to 18's.
And every pic I saw made it look like that car was auditioning for the ballet.
Anyway, said my peace: meatier side wall, 5 spokes. Tom Tjaarda would be on my side by the way! You may want to get the *ultimate* opinion from him. An honor for you both.
Whatever you choose will still get my thumbs up if it makes you happy.