Thank you, I really appreciate your input. As hard as it is to do nothing, I think you're right. For now it first has to dry completely and absorb the Renovateur I've applied so far. Before that I won't really even know the true condition it is in at this stage and what it will take to camouflage the damage. I will keep my eyes peeled for the Saphir Nappa in the mean time, but will most likely come back with photographic evidence of the situation as it develops.While I know it's hard, leave the bag alone for at least a week and reassess as another poster commented. My suggestion would be to avoid all conditioners that contain wax because newly applied conditioners with wax can hinder absorption of conditioners on top of it until it has fully "cured" and nourished the leather. Waxes provide a barrier against water and overall protection which is great when the bag is carry ready. Saphir Renovateur, Blackrock and Renapur are heavy with waxes, albeit ideal waxes for leather but after all that bag has been through, it's going to need time to heal.
Saphir Nappa Balm is very nourishing without any wax. If you're going to spend anymore money on conditioners, I'd suggest looking into that one. Avoid any colorants for the time being, it's just too much for the leather right now.
I saw that this is a Christmas gift for your mom and you want it to be perfect but let bag rest for at least a week. Easier said than done, believe I know as I have putzed around with a difficult rehab to detriment. You've put a lot of time and effort into this and I am positive your mom will greatly appreciate everything!
I'm sure my mom can appreciate it even as is, but I also want to give this bag the new life it deserves.