New Ubolts should be the least of your budget worries if you are undertaking the all mighty SOA. Definitely get new ones, they're designed to stretch on the first torquedown and that's what holds em tight. Reuse em and they won't hold the same, then you have to worry about them loosening on you down the road . New ones or old ones, you should do a torque check on em a while after you install em. Cut off the old ones.