There are a number of replica wheels available from the usual suspects but tyre choice is difficult if you stick with a 14" rim. Your current choice is slightly non-standard anyway as it is a different rolling diameter to stock. I have 185/70 14s on my Spider as it preserves the original wheel diameter, adds more width but doesn't compromise the feel too much. I also have suspension upgrades which is probably more worthwhile doing as your next upgrade, rather than changing your current tyres.
But nice new alloys do look a lot more impressive from the outside than an expensive suspension upgrade
