There are several studies of the fire-eaters and the Secessionist movement, as well as books and articles about individual politicians. There must be hundreds about Yancey alone. Will those names of those titles assist in any way?
Earlier I wrote that fire-eaters "had no constituency" until the crisis of 1860. That should read "minimal" constituency. In political contests up until 1860, they were considered extremists and usually lost, often by significant margins.
Also as mentioned, I can provide quotes and sources Alabama newspapers printed during the period leading up to the war, 1859 to 1861. The same is true for Acts and Resolutions of the Alabama House and Senate from that period. National economic issues are rarely if ever mentioned.