The bolts are almost always re-useable unless they have been R&R'd multiple times, and/or overtightened. The spec is in the FSM.
Re-timing the camshaft is not a big deal, you line up the marks and it should be ok. Just don't remove the cam unless the marks are lined up, otherwise you won't have a reference point for re-installation, and if you move the crank at all, the IP can get out of time, resulting in lots of wasted time. Follow the FSM procedure for cam removal so you don't snap the cam in half. If you RTFM, and do exactly what it says, you should be fine. After everything is put back together, turn the crank BY HAND for two full revolutions and double-check the cam timing against the balancer TDC pointer, make sure it still lines up. Then check IP timing. Repeat as necessary until you are 110% certain everything is in synch. THEN you can try to fire it up.
If you have the camshaft timing wrong, you'll find out quickly as the engine will bind up when you try to turn it by hand. Don't ask how I know.
