Some rear hubs can be moved over by changing out the spacers on the axle too. So a combination of spacers on your crank and rear axle might get you something better. My new bike seems to have one spacer on each side cut to the specific length, so it leaves the mix and match aspect of moving the hub over a little more difficult.
Still I'd try out what it is currently and see if it's an issue for real use. We can armchair all sorts of chainline horrors till proven otherwise by actual use.