+ you will need about.. 30 000+ stacks of elementium/obsidium ores to get that much inferno rubys, 30 000 stacks x4 prospects per stack = 120 000 prospects x 3,750 seconds per prospect (thats the time I use on my auto clicker combined with Enchantrix) thats 450 000 seconds or 125 hours just for the prospecting and what are yuo going to do with all the other mats u get I think that it will be unwise to throw off the Hessonite Nightstone and Carnelian since you will get huge loads of Greater Celestial Essence and Heavenly Shards but you will probably need like a month just for prospecting crafting and disenchanting. And if you stick only to prospect and keep inferno rubys I think u r gona lose incredible amount of gold, but let's just think how much time you'll need to farm up 30 000 stacks or 600 000 ores? How much u can get per hour? Currently on my realm I'm just buying every single stack of Elementium/Obsidium that I find under 26-27g and I'm making at least double profit out of that with prospecting/disenchanting/cuting gems indeed it takes a lot of time but still profitable in my opinion I made about 350-400k gold clean profit in a month only doing that with one account. But let's get back to math let's assume you can get that amount of Rubies in about 2-3 weeks I highly doubt you can sell more than 100-200 per day so you will need like another 2 weeks just to sell them, and
5280x 50-100g= Do mats there

lets take a middle price of 75g, 5280x75=396 000 gold - 5 % AH fee (assuming you sell them all in the AH) is 19800g loss, which gets you down to 376200 gold profit for a month work. I think that it will be way more profitable to get enchanting on the first account and jewelcrafting on the seccond account so you can craft and disenchant at the same time which will save you half the time you will need to craft/de all the items and that way your profit will be over a million gold in probably the same time.
Edit: 1st acc Enchanting/Mining, 2nd acc Jewelcrafting/Mining this will reduce the time you need to farm the ores. You can bot in 2 different zones. You can sell enchanting scrolls (to sell all the enchanting mats faster, altho some of the scrolls are really overpriced), cutted gems, enchanting mats
P.S. can't you realm change with all the stuff inside your mailbox?