There was a previous bug report on Vilnius, that is when he was changed to a night spawn. I'm pretty sure, that post was used as evidence for that fix.
Anson does have a PH and have seen people kill him to get Anson to spawn.
Eldreth, I hear from most posts 7-8hours (which I think is correct), to RL days, so that one is in the air. If you use that as evidence to change Eldreth, you also need to have Yendar as variable spawn time too because that same guide says they both are variable spawn time until 2002, where that page lists them both as 3 hour spawns. Then that same page says in 2006 they made Eldreth a 7.5 hour spawn.
Founy Jestands at location +520, +307, -35 -
Currently does not spawn at that loc on p99. That loc is the Pottery Wheel where he should spawn.
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As a side note: General V`ghera, up until spring of 2001, used to *ALWAYS* drop a Cazic Quill, which meant that you didn't have to collect the robes, either! Now, he only drops it rarely (about 1 in 10 is the commonly-tossed around figure), so if you're lucky you won't need to collect the robes, but most people do.
http://web.archive.org/web/200112130...ger.html#gimpy