With the caveat that I’m only familiar with one Gordon Lightfoot song, I’m going to assume that his deeper cuts aren’t deep funk, djent, or space prog. The B2 Four seems pretty perfect for your needs, really. Its compressors are surprisingly good, imo, and its SansAmp and MXR M80 sims are pretty spot on. The DI sims sound good. And if you need modulation or delay/reverb, it handles that really nicely.
The one thing that I will say is that the B2 Four works best if it’s your entire board or if your other pedals are things that would come first in your chain (compressors, filters, etc.), but it sounds like that would probably work for you.