Hello Travis and welcome,
unless I miss out on something sRGB Gamut and sRGB primaries are the same thing (the triangle in the horseshoe aka the CIE diagram from 1931).
If you render in Linear - sRGB (Linear being the transfer function and sRGB being the gamut/primaries), yes you can convert to ACEScg directly into Nuke by importing your footage as Utility - Linear - sRGB.
What would be the advantage of rendering directly in ACEScg ? You get a more accurate GI (closer to spectral rendering) I detail all this stuff on my website 
Most the information I collected comes from posts and articles by Thomas Mansencal. I have linked all the articles on my website as well if you want to have a read at the sources.
There is a post about Photoshop on the forum:
describing a few workflows. Although I haven’t been able to crack the ICC profile setup yet. For the moment, we convert our renders to ACEScc (logarithmic) to work in Photoshop. Not ideal but it is a workaround. This setup is also described on my website.
Hope that helps,
Chris