For fast cast you should also talk about relic head+3 and AF Feet +3 the Grimoire Spellcasting - lets you cast even faster beyond the normal 80% fast cast cap via a separate multiplier although doesn't stack with the strategems that effect casting time and have to be in correct art. Also Fi Follet Cape +1 can potentially save inventory across multiple mage jobs.
For healing since you don't need to put cure potency on cape let people know it should be -enmity or use Aurist's cape +1 r15 for more mnd and conserve mp. I generally do not swap weapons for cures, TP is too valuable.
Embla Sash for all enhancing duration sets.
For regen you should probably use empy +1 head pretty much always it's too much potency to give up for duration.
For Aquaveil I like casting it in a SIRD set that includes all the potency so if its down I can be sure to be able to get it up but hardly necessary, may prefer duration instead.
You can get +phalanx from DM augments but it only helps you so not exactly required.
For enfeebling on sch you don't have any enfeebles where you need to keep stacking skill for potency other than poison so I would go with two sets one for MND one for INT based spells, AF+3 head and body and feet regal cuffs(slightly less mag acc but duration is big) and gotta go with Chironic Hose for "Immunobreak"+1 for both sets then change accessories. Augmented Aurist's cape +1 is now BiS for all enfeebles on sch but previously use an int cape or mnd cape. Augmented Acuity Belt +1 is best INT belt for enfeebles. Again I don't think its worth losing tp for enfeebles as long as you are using a reasonable option.
Nuking sets are reasonable I guess although MB sets look a bit different if using mythic. Also Adoulin Cape with +2 neck can be used to get Helixs close to 5 min, beyond 5 min with Tabla which has certain important niche uses, since weakness is 5 min and a useful strat for some fights is to helix and die reraise and let the mob slowly die to helix while it sits there unable to do anything.
For stun r15 mythic beats out Musa for mag acc
I only swap my weapons on sch every like 12 mins for putting buffs up with musa otherwise I keep mythic on so I can use my tp for mp or damage.
dt sets should mention Mallquis Saio +2 as a much easier to obtain alternative, don't let lack of omen body be an excuse not to have dt set. Also Augmented Hike Khat +1 and Gelatenous Ring +1 are good options. Shouldn't have to change weapons to cap out your dt, tp is valuable.
I also melee on sch a lot so may want to include melee sets
and ws sets although not too important without mythic which I know isn't very popular.