Not Ranked
You're asking questions which are dependent on many many variables.
Are you the type of chap who will bang the head of of a nickle plated bolt with a ball-peen hammer to drive it into position or, would you use a sacrificial bolt to align the components and then an impact attenuation pad to protect the new bolt during final assemble?
One will take four times longer than the other to complete a build.
I'll be blunt to be honest. If you have to ask these questions you're not cut out for it. I state that in your interest.
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