The Perfect Sphere Grid

[FFIX Choco Boy]

I'm starting to play my 134 hour file again, and I've noticed that while I have 255 in all stats but luck, I could be optimizing much better. I look through my sphere grid, and I find abilities I no longer use (elemental magic, jinx, spare change, a few others), I find non-optimized stat nodes (1-3 points in a single stat, or 200 hp, 20 or 30 mp, nodes), and I also find quite a few empty nodes. Now, I'm not sure what the base stats are for all the characters, but I want to try to get rid of all the useless abilities and the non-optimized stat nodes using clear spheres, then put all +4 stats, 300 hps, or 40 mps in. Now, assuming the only skills I keep are Focus, Cheer, Full Life, Auto Life, Doublecast, Flare, Ultima, Quick Hit, Mug, and Copycat, what is the highest amount of health I can get with Rikku (Who has the lowest base health) when she has a +30% armor on, assuming I get all stats including luck to 255 with all chars, and 999 mp?

Also, in order to get all those stats and mp, exactly how many +4 nodes of each kind should I have? I counted all of them I have so far, and I farmed enough spheres to total 64 of each except luck and magic so far, and I need to know exactly how many 4 nodes will get all 7 characters to 255.

Edit: Original NA version.

Edit2: I did a little research, and found that I need 63 +4s of each type to max out all characters, except luck which I need 60 of. Then 25 +40 mps. That's a total of 526 nodes on stats and mp. Plus my 10 skills I want to keep, that's 536. If anyone sees any good skills I missed that should stay on the grid, please tell me. I just need to figure out how many total nodes are on the grid and I can figure it out.