What a great find you have there Scott.
It's great to see that it will get preserved for the real treasure that it is. Far to often they fall into the hands of a hack with the mindset that it is of no real value because they got it for so cheap.
The mystique of the survivor is that it is still original, and unaltered. That being said. There are some things that would be expected to show wear, and age like the flaking paint on the engine, and forks. But items that would be considered general wear, and maintenance like seals, and gaskets would be replaced. Modifications like the lester wheels would be accepted because they were available at the time, and are a true period correct upgrade.
A true purist would insist on keep those original brake lines, and leaving the stand, and pegs as they are. But the only machine that would fit the true purist view is one that was never fired up, or ridden. If you plan on riding the bike. The safety, and maintenance items must be taken care of.
As far as the pegs, and stand are concerned. I would look for replacements that you could paint, and clean up. Keep the originals safely packed away to pass along with the bike.
To answer your question on the mirrors. Look at the switch housings, and notice how they are not lined up with each other. These get moved to fit the riders personal feel on the bike.
Enjoy