On one hand you're you're thinking 0 miles, they won't leak, on the other hand, what if they do?
Personally I would rather take the time to go find new O-rings than to have to take the time to rip it all apart again if they do leak.....:dunno:
About the only thing that will cause them to leak is a crack, pinch, or getting hard. Inspect them, if they're ok you shouldn't have a problem. However, since you have to ask in the first place, you may not know what to look for? Maybe good insurance for you to just get some new ones.