Adding fahrens can't really be a bad idea with all the excess fire quanta you'll be saving. I'm also not entirely sure on whether SoBs are worth it, I've tried playing around with them in a regular firestall and I feel as though because you have massive stalling capability anyway you don't really need the draw power so much. I'd also say 2 bucklers might not be a bad call, and 6 explosions is probably overkill, 4 or 5 is still enough the majority of the time.
Just as another take on it, here's a similar deck. As with as near as all of my deck posts, this is stolen from Polder's list, I haven't really played around with this one much to say how best to modify it or if it runs smooth as is though.
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7ba 7ba 7ba 7ba 7ba 7ba 7dg 7dg 7dg 7dg 7dg 7dg 7dg 7dg 7dg 7dg 7dg 7dg 7dk 7dk 7dk 7dk 7dk 7dk 7dl 7dl 7dl 7dn 7dn 7dn 7do 7do 7dr 7dr 7n2 8pn