In no particular order, I would get a wah pedal, an octaver, a phaser, a compressor/sustainer (for those ultra long drone notes) and an additional distortion.
Maybe delay, oscillating awesomeness is very usable in that context. You could easily find room for other fun effects (wah, phaser, octave...wierd glitchy stuff).
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Human beings are not machines and however powerful the pressure to conform, they sometimes are so moved by what they see as injustice that they dare to declare their independence. In that historical possibility lies hope. Missing from such histories are the small actions of unknown people that led up to those great moments. When we understand this, we can see that the tiniest act of protest in witch we engage may become the visible roots of social change.
-Howard Zinn
It's all about fuzz and delay IMO. For fuzz, check out the germanium-transistor fuzzes such as Fuzz Face clones; also the fuzzes by Frantone; also the Pigtronix Disnortion. I like the fat smoothness of all those better than the harsh, gritty fuzz of the Blowtorch.
i play somewhat similar music, and heres my board, which i think is now done(ha)-tuner,octave,compressor,clean boost, muff'n,fuzz,dm-2,dd-20,moog ring mod. ive never found a good use for mods. just delay and dist. cheers