The annual ULF run is just the ortho film not FP4 or HP5. In the past I've used the discontinued Efke 100 from Freestyle. I just ordered some Foma 100 from them to try out. If for some reason I don't like the Foma an overseas order is probably the way to go.
The ULF run is Ortho, FP4, HP5 And about a dozen sizes of Delta100.. Evan Clarke