I wouldn't run it on track wheels, not worth the money.
The balancing thing is a complete non-issue. Plenty of guys race on wheels/tires that haven't been balanced at all, all it does is cause vibration, which we all had plenty of with aluminum motor and trans mounts and zero sound deadening anyway. Don't worry about it!
Related to that, I once had a tire shop put some used slicks on a set of wheels for me and they had so many track boogers on them the shop had to use like 20-30 balancing weights, and when the boogers wore off in the first lap or two the wheel shook way worse than unbalanced ha.