You’ll need anti-goat secondaries, which you can get from Life Tech. In general, I like secondaries raised in Donkey, since I’ve yet to use a Donkey primary antibody, so low probability of species-mixing problems.
Temo uses a BSA buffer, as do I (he taught me). 1% BSA, 0.4% triton-x, in PBS w/ azide. That’s my all around IHC buffer now and it works for the majority of applications.