Over. 3% sounds about right. Enough to swing the election towards Clinton.
I expect the overall third party vote will be higher than Nader 2000. However, it will be split, with Johnson getting a higher vote than he did in 2012, but also with Stein getting a higher vote than she did in 2012 for the Greens. I guess there was Buchanan in 2000 as well though, and he did get at least some support.
Third party voting will be relatively high, except many people do still remember 2000, and that will make people a bit less likely to risk "throwing away" their vote.
Total 3rd party percentage in 2000 was 3.75%, so 1.01% shared between Buchanan (0.43%), the Libertarians (0.36%), and others (0.22%).