Well in RNG Reporter, if you put in this seed 561501FA and filter the results to Timid with the stats you say, under Method K because stationary legends are all generated with Method K I'm pretty sure, it wont bring up any results.Well PokeRNG doesn't ask for Methods. But yeah, my Latias is stationary. The guild for PokeRNG said to find you time, enter that seed in PokeReporter in the Seed to Time section.
I ran JavaRNG with a bunch of times with different settings and the highest IVs I could get with Fire 70 + Timid was 31 / 3 / 27 / 30 / 31 / 30
If someone with more RNG knowledge could help clarify this...