It takes at most 8 weeks to get your weapon and potential BIS chest piece (Which aren't BIS for everyone).
The weapon itself is a minor DPS boost. You can clear ultimate with Tome Upgraded weapons.
This also completely ignores the fact that even if you're a week 4 wing 4 clearer, you could have still given the gear to anyone and be fine.
If you're coming into the game late, that's another story, but other than Tome capping being based on weeks since patch drop, I don't see a way to alleviate that. You came in late. You gotta get your stuff. There's a ton of catch up opportunity, but a completely fresh static has its own issues it'll have to overcome coming in late.
If it's just you, well, you can be fed every coffer and be nearly 470 in a week.