It’s a bit rough now, but I’d say it’ll be totally doable when 9.1.5 hits.
Anima itself isn’t really the issue anymore, you can make 2000 daily, easily, in Korthia, and that’s ignoring the big weekly sources like world bosses, epic world quests, and the normal anima quests.
Souls used for upgrading the covenants themselves also shouldn’t be a problem in the next patch, as they’re making that quest repeatable to get all the souls you need.
Knocking out the renown will be time-consuming, but not really hard. Once you buy the item that starts your renown at 40, it should really only take a week to grind the remaining 40, if you just blaze through Torghast.
Grateful Offerings are sort of a pain to get now, but since they’ll drop from daily callings in the next patch, they might not be as much of a hurdle in the future.
The real sticklers will be the Korthia Daily sets, Korthia rare enemy mounts, and absolutely the unique covenant features.
The Korthia daily sets are completely RNG as to whether you get them or not, and even now, I don’t have a complete covenant set. The covenant mounts that drop from specific rares can also be unkind, as it took me 2 months of doing Korthia every day before the Night Fae mount finally dropped for me (your results may vary on this).
But doing ALL the different covenant features, with all their unique materials and wait times, it’ll definitely take some doing to get ALL of that done, especially if you’re looking to do it on every armor class.