Really interesting idea, although running a three person team will make things difficult. Whenever Raquel runs into trouble, your team will generally faceplant (Geno can at least help in some situations there though). Worries are: Evasion, Defense for most of the game, just lots of enemies in general, and Raquel is still slow even with Body Charge. That status protection might be a bit late too, but some of the bit example I can think of where it will matter (Floor 4), evasion helps.
Other choices:
Emily: Doesn't get much from BC, really. Her stats are already really strong such that adding a bit more doesn't help much (And now she'll be before Geno, losing some of the synergy)
Zerase: Very good choice. Speed now hits the sweet spot, physical durability is now 1.2 PC HP, damage gets a nice extra kick. The MT might be kind of sparse though, and that means yeah, ST damage may run out.
Ness: His damage is generally average, so not even good as a bruiser.
Running a 4 person team is difficult, so I would be quite interested in seeing some a 3 man team does.
And Deis should hopefully mean that Floor 1 shouldn't be a problem for Glen. Later ones though...