Why would odin take 10 days? You only need 1 wing of each tier to enter, this applies to both V1 and V2.
Also, maybe it's just me but splitting a 60k entry item seems a little silly. When I shout I just want people to fill up the last spots so I can get in and go asap. I don't even care if they do anything or participate. My shouts generally just look like "{Einherjar}T3 {Team up?} Any job ok/everything free lot. /tell" .. I don't nearly have as many problems finding people as I did around the same time last year. Einherjar is boring, and most people don't give a crap about it, the best way to get people to tag along is to make it look attractive.
I also think your generalization of Nyzul is way off. It's completely possible for 2/3 people to easily get 5k a run. There were times when I got 10-11k with a lot of optimal floors, usually around 7, and 5 if we had a lot of crappy lamp floors. Assuming 5k a run, that's only 30 days, plus/minus whatever it takes to get your Runic Key. Keep in mind you'd also be getting tokens while getting your Runic Key. (I really don't know/remember what the average tokens are starting at anything other than floor 96, but I think it's safe to assume you'd end up with 40-50k just from getting to floor 100). I don't think it's considered normal or ideal for a person to solo nyzul for 1-2k tokens a run.
As much as people say T3's are soloable, there's a few with mobs that have a crazy amount of hp and that are just annoying and I've timed out before killing everything, so I prefer to just go with 6. I don't doubt Odin 1 is soloable, but I'm making a Yag on my mule and I don't really want to use their ichor or buy wings off the ah.
Assuming what I was told about the Coalition system in adoulin is true, even your 175 days falls behind the 240~ it takes to get legend status to start Geo/Run mythics.
Realistically, you're more looking at 96 days for assaults (assuming you start with 4 tags and don't fail any), 20-30 days for Nyzul depending on your luck/skill. 150 days is a pretty moderate average, assuming poor nyzul runs and a few failed tags, with 125 being more likely if you don't fail anything and can do nyzul somewhat efficiently