10,000 packs is around $40,000 on the primary market for Chaos Legion packs and then there are the vouchers required for the additional free packs and the potions would be 5 per pack. So 50,000 of each potion for higher Legendary and Gold Foil drop rate.
That's a big investment, more than just a grand or two.
If you want to run 50-100 guilds, say 10 accounts per guild, that's 500 accounts minimum, to divide the 50,000 cards into.
Then there is the cost of setting up so many accounts at $10 each for the spellbook, or buying them from other botters who'll sell for $1 - $2. Then there is the risk that the sellers can recover their accounts within the first month or so after the accounts are transferred and you change the private keys changed.
I wish you luck in your venture.
Unfortunately I don't have the capital to make such a large investment, and there are some risks.